I am so sorry that you are going through such a horrific time. And I do mean horrific. I have been where you are. Where everyone is having fun except you, which makes you feel even more odd. So you go home and try and sleep it off, but you are so sleepy you panic and start thinking "what if I die in my sleep?".
May I please ask if you have a doctor? Are you taking any medication? If you are, talk to your doctor. It may be time for a switch over. When I start to feel "different" or "odd" I talk to him about my symptoms. Usually it is a dosage problem.
If you do not have a doctor. Ask your PCP to recommend one or to some Internet research.
I am so sorry you feel bad. I hope you smile again soon.

Nolafeline