I had Graves’ Disease .00000 for about 2 years before it turned into cancer. Unlike Hypo, you WILL develop symptoms that can be permanent and yes, it is NOT to be “let go”. I went into Hypocalcemia shock post surgery and they almost killed me by avoiding the issue until it was almost too late. I was VERY sick when I went in to get it out. After 10 years, no thyroid, my body went into Hyper again and I’m on meds and always have been. I’ve tried almost ALL of them. When you don’t have a thyroid or a good working thyroid, it Absolutely causes Chemical Chaos in your body. I attempted to treat mine via homeopathic means, I obviously failed.
If you can take meds to balance it out, in addition to have regular blood work to determine your vitamin deficiencies, hopefully you can stave off the worst effects.
The tremors can be a few different things, i would recommend consuming calcium citrate in liquid form and a good multi vitamin with plenty of D3 and B12/B6. You should notice a decrease in the tremors and heart palps. Deep breathing exercises can help with palps as well. Find a good Endocrinologist, you'll be seeing him for the rest of your life.