Hi, I Have Some Bizarre Symptoms. I Have Nausea, Feel

hi, I have some bizarre symptoms. I have nausea, feel like I am about to be sick but don't actually vomit. I have had some sinus problems, been prescribed an anti inflammatory spray. I have had numbness on my face, the g.p thought this was in relation to the inflammation of sinus and nasal passage pressing on a nerve. The numbness and tingling has gone and I have been left with an itchy chin. I have almost fained twice in recent months, the nursse suspected I needed to eat more regularly and eat slow release foods. I have most recently now began to have goosebumps and feel a little chill, this doesn't last long. Any suggestions?