There are gov't programs for people who are unemployed. There are gov't programs for people who can't work. There are gov't programs for people who can't afford health insurance. You're on a lot of medication, and in my opinion, it has nothing to do with your size, it's most likely because you're on meds that don't work for you. If they were working better, you wouldn't need so much. Now, you're talking about anxiety, but you're being treated for severe depression or else you suffer from ADHD. Adderall isn't given to anxiety sufferers, but it is sometimes given to severely depressed people and to people who suffer from ADHD. It's speed, pure speed. Obviously anxiety sufferers don't do well on speed. People without anxiety can get it from taking speed. What you need is a social worker, it sounds like, who can help you get the benefits you need so you can afford proper health care. You need a different psychiatrist at least for a second opinion. Any doc who tells you smoking is fine isn't a doctor. Smoking pot can cause anxiety attacks for some people, for others it can be helpful, but in combination with the amount of other drugs you're taking, who knows what the cumulative effect is? Look, you're on uppers and downers at the same time. No one here knows why. Do you know why?
Are you working with a psychiatrist? That is really important with all you have going on. Are you on Medicaid (in the US?)
I'm not an expert on these drugs you're taking, but I do know you can't just stop them; you need to wean off them properly or you can have bad withdrawal symptoms.
I can't imagine why your doctor is telling you he wants to "study" you some more... that doesn't make sense. He needs to be treating you, not studying you, if he's not psychiatrist.
I agree with Paxiled that giving you uppers and downers at the same time is most likely causing a lot of your trouble.
It's quite likely that you can't stay in bed because Adderall is a stimulant and how many people sleep when they're overly stimulated?
That said - I don't know where you live, but most counties (in the U.S.) have a County Health Department. You should go there and see what kind of help can be obtained, since you aren't working. Even if you're on unemployment, most health departments charge on a sliding scale, so they wouldn't say you make too much money, at this point. You might also get help from with counseling for PTSD and anxiety from some churches and there are counseling organizations that may do counseling for free or on a sliding scale (depending on income), but you need to be working with someone familiar with weaning off drugs, not this doctor who seems intent upon piling on more.