Sorry this is so long, but I'm hoping the whole story will help.
About a year ago I started feeling tired and dizzy at random times during the day. There was no rhyme or reason to it, and lying down didn't help the dizziness. I had no real health problems previously. (I was 24 and running 4 miles per day.) I saw an ENT who did a hearing and balance test, which came back normal, and gave me a steroid pack for a possible hidden sinus infection. The dizziness went away for a couple of weeks, then returned.
In February the muscle cramps started. I was waking up at night with tears in my eyes, gasping for breath because of bad aches in my legs. Finally in March 2008, I saw a doctor who did bloodwork and my TSH was 64. The doctor said I had hypothyroidism, and I tested positive for Hashimoto's Thyroidits. They started me on Synthroid, 125 mcg. The muscle aches immediately went away, but 4 weeks later I started having a racing heart, night sweats, and feeling nervous and jittery. My dose was immediately taken down to 100 mcg. The same thing happened again after 6 weeks. I felt like a crazy person. They ran labs again, and decided my dose was still too high. Then I started on 75 and, frustrated with my regular doctor, saw an endocrinologist who is awesome. She said I had been OD'ing on Synthroid and I should get better on the 75 dose. She found no nodules and said my thyroid looks like it should. My thyroid labs were normal.
After five weeks on the 75 mcg dose, I started getting severe dizziness, shaky arms, hot flashes, and numbness in my extremities. Sometimes It hurt to stand up straight because my back ached. My thyroid labs showed that I was on the high end of normal, so now I'm alternating my Synthroid between 75 and 50.
I've never felt so sick. Several times a day I'm having a sudden onset of vision that looks wavy, pain and heat in my upper back, and along with it comes dizziness and numbness in my hands. I feel pressure behind my eyes when it happens and sometimes my stomach is upset afterwards. I'm waking up emotional and nauseous. I'm not sleeping well. Just a year ago I was a happy young newlywed who was looking forward to running a half marathon. Now I'm lucky to make it through a grocery store trip without feeling like someone needs to put me in the cart and roll me out of the store.
My endocrinologist says my thyroid labs are normal. She looked at me like I was crazy when I told her my symptoms. My family doctor ran CBC, CMC, renal labs, glucose tolerance test, and everything came back normal. I have slightly low blood pressure (105/76) but I think that's from running. They've scheduled me for an MRI in case there's a hidden sinus infection somewhere.
My question is this: Has anyone had similar symptoms with Hashimoto's? Could this all be thyroid? My regular doctor suggested that it could be anxiety caused by Hashimoto's, but I don't feel worried about anything. I'm normally carefree, strong, and spunky, but I feel like this has changed me so much. I'm not opposed to taking something for anxiety if that's what it is, but I feel like there has to be something causing this. I've never had any health problems before. Your help would be appreciated. My husband and I want to get all of this straight before we start trying to start a family. I feel like Hashimoto's is ruining my life.
Thanks so much for your help!
~ Emma