Biting flies symptoms and conditions

This is a total nightmare and i need advice! I was on Lamictal for a year and about six months into my health began to slowly deteriorate. It started with shortness of breath and heart palpitations and eventually attacked every system of my body. My symptoms are muscle pain, spasms and knots to the point that i can't turn my neck sometimes, joint pain (mostly knees), stabbing floating pain everywhere, headaches, frightening tingling in my extremities and a few times my entire body, sore throat, flu-like feelings, stomach cramps, bloating and heartburn. The list goes on. I have been off of it now for two weeks. My psychiatrist has never seen this type of reaction before and is not convinced it is the Lamictal. I have been to every single type of doctor and the ER twice, had extensive lab work, CT scan and two MRIs. I have been off Lamictal now for two weeks and am not feeling much relief. I am so scared and frustrated and please need advice. Has anyone else experienced this? Does it ever go away? I feel like I am literally living a nightmare with no-one to turn to for advice because no-one seems to know ANYTHING!!!!

I was prescribed Avelox after an ongoing sinius infection. I took 3 doses of the 14 day prescription. After the 2nd dose I started having extreme muscle & joint pain from my neck to my toes. I had a slight rash on my forarms and around my knee joints and I had itching on my feet that felt like biting flies. I was unable to move without pain for 3 days after that. My doctor prescribed Medrol dose pack steriods to help with the joint pain. After the first day of the steriods the itching on my feet worsend to extreme burning itching to the point I lost my mind with no sleep and overdosed on benadryl. I slept that off and continued to have muscle pain/joint pain. I started researching on the web and found that this class of drugs can be very toxic to the body. I found a support group online and they gave me some advise to help with the pain. As of this day it's been 8 days since the first dose and I would say the pain is 90% gone (thank God)