Many experience this and it should be simply chalked up to a clinical/chemical unbalance within the hormones.
Most doctors as Ed states will pronouce you Bi Polar or ?? and put you on meds to mask the condition.
Maybe getting a second opinion on your thyroid levels with someone who believes all these emotional reactions are connected with not being in balance with your hormones would be a good way to go first - before going on the route to a mental DX on your emotional state of mind.
I am hyper, and will have the RAI tomorrow, but I've been the same way for 2 1/2 years. I've had it all, including some moods that haven't even been discovered yet. I know I can't help you, but I like the "strangely goofy happy" thing. Such a great way to describe it. But be careful if you get sent to certain docs or therapists... they will diagnose you as bipolar or obsessive/compulsive disorder.
It's that slap-happy feeling...where you sometimes can't stop talking and you move quicker than usual. Sometimes I catch myself singing or talking to myself and laughing about it. Of course co-workers and bosses see this. And...without warning....CRASH! I might blow up at any time... or get very, very sad and miserable to where I can barely function and do my job. Some times I hide so I can cry, or I might have a severe anxiety attack. Sometimes I get bitter for no reason...
I am 7 weeks post surgery they removed the left half of the thyroid now i am testing as being hypo with a tsh of 6.448 and 2 days ago they started me on .75mg of levothyroxine also headaches the past week i have had horrible headaches only in the afternoon to early evening. AAAAAHHHHH i am becoming frustrated and impatient with the world.
Hi .. can you refresh our memory on your DX, any meds taken, etc. That may help us with some advice/answers. thanks!
C~