I am a 33 year old otherwise healthy woman with a family history of thyroid disorders. I have been on LEvoxyl for 2 weeks and initially I had diarhea, which has stopped but I now have pains and aches in my joints and muscles..especially in my hands. I have not lost any weight yet (although I had gained alot before on the med) I also now have a little swelling in my neck..is this a normal side effect and will it go away?