I di have a simular experience when i first started the medication. I was given a muscle relaxer and anti anxiety pills that seemed to help. I did take myself off of the meds but found that i needed them so I started over at a lower dose and increased from there. I am on levoxyl .075mg but now after 6-7 weeks I am having the same symptoms again. I have extreme soreness between the shoulder blades and irritable and heart plaptions. I will go next week to get a TSH blood test to see if it is ok and see my doc again. I didnt mean to go on. i hope this helps. Talk to your doctor again.
good luck
For me it wasn't the meds. (levoxyl), but rather the disease. I took antidepressants for a while and now taking anxiety meds. on an as need bases, which works great seeing that I don't have anxiety issues. Regardless, I still consider myself mildly healthy and positive.
Good Luck and Best Wishes for 2008!
(My information and comments are not meant to offend or be offensive nor obnoxious, they are what they are, just information and comment - GL)