I Have Had Dizziness Off And On For 8 To

I have had dizziness off and on for 8 to 10 weeks. My other symptoms include lots of joint pain and an elevated sed rate of 56. I have been diagnosed with OA several years ago, but, the dizziness and elevated sed rate are new. I also have a slightly elevated CRP of 1.7. I have been to three doctors and no one can decide what is wrong with me. I also have a rash all over my body for the past four years that itches and is being treated as excema. I am 66 years old.