I had had a few blood tests over the past month as I was getting very light headed and feinted a couple of times. My TSH level was found to be 0.7 and then down to 0.2 last week. This makes sense, as a lot of my symptoms recently (20lb weight loss, nausea, palpitations in throat, throbbing pain in throat, itchy skin) point towards hyperthyroidism. However, my T4 level was in the normal range (awaiting results of T3, thyroid ultrasound and CRP level).
What could be causing my extremely low TSH, but normal T4? Does the fact that I have been sent for an ultrasound and CRP test mean they are looking for goiters, nodules or cancer? I have been referred to an endocrinologist and I am awaiting notice of an appointment.
I was diagnosed with parvovirus B19 in May 2010, and have been suffering with chronic fatigue, muscle and joint pain for the past 7 months. I have been taking Elavil each night (10/20mg depending on pain). Could the thyroid problems be triggered by either the virus or the medication I have been taking.
I am a 27 year old female, 5'4, 120lbs.
Thank you for reading and I hope someone can give me some advice.