I'm experiencing constant tiredness, shakiness, I can hardly stand for long, chest tightness, bluish dark lips, stiff neck, upper back muscle spasms. I also experiencing wheezing at nights, I only feel better during hot weather, I look very pale, short of energy, constant headache. I've been having this conditions for over 2years now. I've carried out thyroid function, mantoux, urinalysis, FBC, HIV, x-ray and a few​ others, they can out clean. I still don't know what the problem is please help.