@jewles63 – Thyroid imbalce certainly does have all kinds of symptoms!!! I told my endocrinologist about the vibrations but all she wanted to do was put me on a 24 hour halter monitor. I really don’t think it’s my heart because when it happens i check my pulse and it’s normal. I also listened to my heart with my stethoscope (I’m an RN) and it’s normal as well. So strange. I feel like no matter how well I explain this to any doctor they will never figure it out. I’m just praying it too shall pass. For me, they mostly happen in the middle of the night after I’ve been sleeping for several hours. Wondering if it’s some kind of positional neuropathic effect from compressing certain muscles/nerves in my neck?!?!?? Idk. I should get halter monitor results this week as well as repeat thyroid labs to see if my meds are working to suppress it. Prayers for everyone on here dealing with difficult symptoms.