Whats going on with me please help?

[ANOTHER1000]

18 months ago, my hair started to shed alot and i started to have lighter periods though still in time. I also had a feeling of tightness in my neck. Did numerous thyroid tests all normal. However the TSH number is getting down from 2.86 to now 0.66. I did the test for Hashimoto antibodies it was -ve. Then i found a lump in my thyroid which ultrasound showed it to be hypoechoic-ill defined14x5(weird dimensions) and another on the same left lobe 7x6 isechoic with clear dimensions. scan showed it mildly decrease uptake(cold). biopsy schedualed 2 months from now i dont know why? now am having palpitations and headaches with the hair shedding and light period. IS IT CANCER?

[ANOTHER1000]

Am starting to think its lymphoma based on its dimensions(14x5)mm, but would it have shown in the thyroid scan it if it was lymphoma? What lymphomas also cause these symptoms?

[Mark Lupo, M.D.]

Your thyroid blood tests are normal appearing.  The ill-defined nodule probably should be biopsied.  I do not think it is clear that the thyroid is causing the palpitations, headache and hair loss.  You should likely repeat the TSH when the biopsy was performed in 2 months as it did trend downward a little bit based on the data you gave me.  Only 5-10% of nodules are cancer, so that is not likely.