<<Disclaimer: Verify this information before applying it to your situation.>> Has anyone experienced stomach pain and intestinal cramps on a GF diet while using Synthroid @.05 daily, or with Nature Made daily combo vitamins which are GF. The problems started 1 week ago and these are the only 2 items that changed in my diet. I started the vitamins 16 days ago and been on the synthroid for 7 weeks. I stopped the synthroid yesterday and the symptoms seem to have subsided. Also I had a reaction when I first started the synthroid. I was "bouncing" off the walls so the doctor cut back on the dose. Dave in Tucson AZ.