My 44 year old daughter was diagnosed with hashimotos based on a ultrasound (she has no antibodies for it). With meds she was able to get her thyroid back to normal levels..still low TSH and T3 though. She continues to have episodes of chills that lasts for hours, heart racing, nausea, shakiness, night sweats,etc. She thinks maybe it is allergy to mold. She is going crazy with no diagnosis and no treatment and thinking she is dying. Thanks!