Coffee and Caffeine FAQ

I always had some caffeine here and there but all of a sudden I had the smart Idea of taking diet pills which had about 186 mg of caffeine in them twice a day for about 2-3 weeks all of a sudden on a Wed. I didnt take them with a good breakfast and during class I experienced a caffeine overdose I was dizzy and had numb and tingly feeling from both of my hands and heart felt like it was gonna explode so I went out side and calmed myself down and went back then right before class ended I had another one so I went to the campus med. facility where I had another papiltations I guess that what they are called.. they wouldn't let me go till my heart rate went down.

So that that happened on Wed. and it got better and better, Fri. after my job interview I developed a lump feeling on the right side of my throat and lost my breath every time I thought about it got worse and I couldnt go to sleep so I went to the Doctor on Saturday and he said that He could not see anything really wrong with my throat except maybe a little inflammation so he gave me some antibiotics I dont know whether it is the throat inflammation or the stress and anxiety I have because of the caffeine withdraws

So far I have these symptoms; Chills that go off and on, dizzyness and once and a while loss of balance but this can be due to my bad eyesight since I do not have glasses, I can hear my heart beat but i dont freak out anymore, loss of weight, depression, weeping and crying, hot and tight face, and loss of Hunger, I also feel very tired.

I wanted to know if this is due to the caffeine withdraws and how long this will last, or should i ask the doctor to check my blood and see if that stuff messed with my thyroid or heart.
I need help because im 19 and I have never experienced this type of thing before and its scary