Bad behavior, ADHD or a combo of both? Please help

[Foursonz]

My 19 year old son does things like squeeze my face or body hard, throws my cell phone unexpectedly and ask me to catch it, curses during regular conversation, etc. Sometimes he even knocks into me and pushes. Then he laughs when I react.  It is an every day thing.
The psychiatrist that he started seeing, due to a drug abuse problem, believes he has ADHD.  This behavior was not present when he was abusing soft or hard drugs. It has appeared since he stopped self medicating.
Is this bad behavior,  attention seeking behavior or ADHD?
How do I get this to stop? I cant take car away since he lost his license. He dropped all his drug friends and am so grateful for that. What do  
I do?

[Sandman2]

  At 19, he is a long way from being an adult.   It's. Been proven that teens - up to around 24 ( I think)  do not have a fully developed part of the brain that controls self control, etc.

[Camrin24]

Is he incompetant in anyway?

[Camrin24]

Sounds like he needs to be evaluated again. I didn't think adults with ADHD has this kind of behavior.

[healthyindividual]

I think we are not robots and we all behave differently as life has made us step by step he wants you to be playful but you i believe are the one with the problem the negative energy trying to be so correct the only way he can get a little playfulness is by making you react cheap i know but you should connect instead of trying to make him change then he will change he will grow he will learn to connect instead of developing bully energy

[Sandman2]

     Yes, I think it could be very helpful for all involved.
  Oh, and this is why I mentioned exercise.
          http://www.theatlantic.com/health/archive/2014/09/exercise-seems-to-be-beneficial-to-children/380844/#comments

[Foursonz]

What I got from this, in addition to all the ADHD links (thanks) is that I should see a therapist.  His doc will not see me at all- it is against his policy since son is his patient.
Son is third of 4 boys, all very close in age, and the others "walk a pretty straight line" and do well is school.
Making an appointment with a doc for me again soon.
Thanks.

[Sandman2]

       One other quick thought since I reread your first post and saw that he was one of four boys.  guessing he was the youngest?  Thinking that a lot of this is how he interacted with them?   Doesn't make it right, but it really may not be intentional.  He needs to be reminded you are not like one of his brothers.  And it is not unusual for kids with adhd to not pick up social clues as easy.  Its something to be worked on.
     Ya, hate the psycs or colleges rule that once a child turns 18, the parents are not involved.   What you can do though (if you can afford it) is schedule an appointment and ask for his help on how to more effectively work with your kid.  He can feed you ideas a lot faster then I can.  And he also hopefully, knows your child well enough by now that he can give some specific ideas on ways to work with him.
    Oh, I asked about the meds because one of the classic signs of adhd is the unthinking actions when not on meds.   I have a brother-in-law in his 60's who would leave his head hanging on the chair and walk out the door if we didn't remind him he was headless.  He starts thinking about something and tends to tune out the rest of the world.   Add that kind of action to a teenage boy and you wonder how they can function sometimes.
   Golf is good.  See if you can also convince him to get some strenuous aerobic exercise in when he is finished.  It will make a diffference.  There is a reason why Michael Philips swam instead of playing golf.   And actually Michael was still making some knuckle headed decisions in his 20's.

[Foursonz]

To answer your questions:
-no meds started yet
-no, he's not angry when he behaves like that. He could be trying to be affectionate as we had a  strained relationship when he was on drugs and now we are much closer
-doesn't work or go to school. Took this semester off and withdrew from college due to opiate abuse - which he has not abused in months
-gets exercise-golfs ever day for several hours a day
-reads books nightly
-lost his academic scholarship so we will send him to Community College next semester
-his psychiatrist won't talk to me since son is 19

Thank you for your advice. I hope the additional info helps

[Sandman2]

       First question would be has he started any medication and then did this start when he started meds for ADHD?
      How long has this been going on?
      The swearing is kind of normal for his age group.
      The squeezing, etc kind of depends on why and where.  Is he angry? showing affection?  Upset?  Playing around?   Does it happen at any time of the day or only during certain time periods?
       To stop something like this - he needs to know that it is uncomfortable for you.  Its possible that he is being playful or doesn't quite know how to express himself -  hence my questions above.  
      There really is a range of things that could be happening here from abuse to being 19 an no clue.  I don't have enough info to tell.
      But I do think that it is certainly worth mentioning to his psyc. and getting his opinion.  
      When does he restart college?  Is he just hanging around the house with nothing to do?   Does he get out an exercise at all?