Health Concerns

I'm not sure where to post this, so I'll start with here. I'm been feeling really weird lately.

My symptoms have been:
zombie-like feeling
seeing lines or weird shapes
blurred vision in the spot im looking but in focus around it
tired
weak to the point i just wanna let my arms hang
mild temors
constant eye twitching or even eyelid twitching.. sometimes my fingers will twitch
sometimes ill lean over to sip on a straw on a table i feel like im going to pass out and my body regains whatever it lost and im fine.. sometimes ill be sitting at work and i fell like everything is wavy in front of me or my body feels wavy which makes me dizzy
sometimes i lose my train of thought and blank out.. and cant remember what i was going to finish
i have trouble sleeping.. my mind runs and runs.
sometimes i feel like i want to fall asleep but im not tired
sometimes i have stomach cramps so bad that i need to rush to the bathroom
at times my bowel movements are weird loose then hard to push out.. sometimes i feel like i need to go more
i do have depression as i was sexually abused as a kid.

I have anti-depressants i take. Welbutrin, Risperdal. 3 Years ago I was on Effexor, Celexa, and Risperdal.

I'm 23. 5'8. and 230. I don't like overweight in my clothes... so at 230 I dont look like a blob.

My cuts heal fine. I only pee when I actually drink like water or tea. I do drink diet coke to much maybe 4-6 a day. I don't smoke or do drugs. I drink alcohol on occasion. I walk 2 miles probably 3-4 times a week.

Sorry this is so long and i feel like im rambling but I just want to see what it might possibly be.