People without Gravevs disease/hyperthyroidism do get heart palpitations. People without hyperthyroidism do get anxiety diseases. The key issue though is what your blood tests show. If your endo will not show you the blood tests, have your GP request the lab reports, and see if the GP will tell you whether the tests are normal or not. Or, go to another endo, and have that endo request the labs. There is a rather broad range of normal for TSH, and it is possible to remain normal with tweaks to the medication regimen that lower (or raise) the TSH while still keeping it within normal boundaries. Some of us feel better at the hypo end of things than at the hyper end and vice versa. Try to keep an open mind, though. As I said, there can be other reasons for the heart palps/anxiety than too much thyroid. But given our history it makes ultimate sense to check the thyroid issues out thoroughly first.