I worked in a convenience for 3 and a half years since 2001. It is a very busy place, busier than others. In the beginning of working there I was still in high school and working part time, in the summer full time. I am very anxious person, get nervous, panic attacks, stressful and shy unlike any other person. I had fear of talking to people and had difficulty controlling my nerves. While working weekends I started to smoke 2-3 cigarettes every weekend, sometimes I did'nt smoke for a month but I kept this routine for about 2 and a half years just quiting and smoking ect, I noticed I became exrtremely unpatient and nervous while I was'nt smoking and when I was'nt smoking I experience nasal problems and muscles weakness (general weakness) and dry mouth symptoms. I was drinking sums of coffee during the time also but as I started to quit smoking gradually I became addicted to coffee so much at work, I drank 8-12 cups usually fri-sat-sundays and 1-3 cups of coffee at home from mondays-thursdays. Basically I was drinking an overdose of coffee and a combination of smoking as well. During the time my anxiety level was as high as anyone could possibly imagine, it sort of became chronic or some kind of habit. Overdose of coffee and high level of anxiety (excitement) made me have the following symptoms, numbness in hands and legs, rapid heart rate, shortness of breath, adrenaline was as high as ever also for long period of time, dry mouth at night almost persistently, little red spots on arms.Since I was a little kid about the age of 13 or 14, the time since this anxiety really started, I progressed into a habit of biting my nails and my interior lips when I was anxious and when I was not. This went on until 5 months ago when I decided it was a really stupid decision. While working at the convenience I bit my nails frequently or just once in a while and when I was more anxious with the coffee and cigarretes to my own anxiety problem I was biting my nails all the way down to my skin, somethimes caused little cuts which were bleeding. Most of the time I put badages on or just used my T-shirt until my finger stopped bleeding but sometimes I did not have time to cover with anything.Well, nail biting made me calmer and was pritty much soothing when I felt pain. About 1.5 years ago, I had bronchitis. 6months later had worsen numbness in arms and legs and because of lower back injury had some back pain.My heels felt pain from standing and just gradual muscle weakness.I went to get physical test done 3 times and everything was perfect. Currently I have symptoms; burning eyes (contacts), peripheral neuropathy (not sure though), sweatiness (drink lots of water and vitamins), muscle weakness, thick lips(skin), white stuff on my anus with little red rash, sometimes difficulty swallowing. I went to the doctor, response; was anxiety, anxiety,anxiety...took paxil now and fell a little better.Never had sex or needles in my life. Could this be a sign of something serious?