I am looking for something to help calm my nerves. I have tremors constantly. (I have Grave’s, just had RAI 2 days ago) I get so moody it is like I am a Manic Depressive. I have 2 young kids and need to be normal. Someone suggested I use St. John’s Wort but wasn’t sure if it was OK to use with Thyroid problems. Any input would be greatly appreciated!