Lamictal and racing heart

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!!!!

Extreme agitation, racing heart, mood swings, insomnia (recently). Going off this asap. Anyone know how to get off it: quit right away, taper off?

Take large doesage of Lamictal. 400MG in the AM and now 400MG in the PM. 7 months pregnant and the level keeps falling. It does work I think to help control seizures some. Still have a few cp seizures but not too bad.
Do have racing heart beat once or twice a week and when the dose in increased the dizziness does come with a vengance. Usually after a day or so the dizziness does go away.