Thyroid symptoms!

Hi all,

I've been having some not so comfortable symptoms lately, including dizziness and feeling of nausea. Saw my oncologist who's ordered a brain MRI. However, I just heard that my TSH has gone above normal. I've had a slow thyroid for about six years now, taking Levoxl, 75 mcg. In March 2006, last TSH test, it was 3.5 (a little high but normal). Now it's 5.5. A good friend, a nurse of many years, and also a thyroid expert (she has more serious problem than mine) suggested that the nauseau and dizziness are both thyroid problems. She is the one who insisted I have TSH checked.

Anyone else out there with this issue and can point to a change in thyroid as the problem. I had also taken cipro right before nausea started, so oncologist thought I might have changed the flora/fauna, thus the nausea. The nausea has lessened a good bit in the last week but still occasional. I've also noticed that my reflux is worse than ever, although I faithfully take my 20 mg. of Prilosec every day.

I will still have the brain MRI--can't hurt, but would love to hear it's thyroid related. Oh, also have high blood pressure and when most of the spells occur I use my machine to check blood pressure (Omron, recommended by cardiologist). It was very low on all those occasions with dystolic reading in 50's and low 60's. Perhaps I also need to lower the dosage of my blood pressure meds. Last March, cardiologist doubled meds.

Has anyone's blood pressure changed since taking herceptin?

Thanks for listening.