Hi Andy! Welcome back to SR. Day three is tough, I hope you have an easy one. Seeing the Dr. or at least calling is a great idea.
I had all kinds of symptoms while drinking and after quitting. My worst on day three was cravings. I stayed on SR a lot. Online meetings are helping a lot of people, too. I'm on day 46 and still not feeling great, but I'm older and have been doing this for an awfully long time. Hopefully you will feel better really fast.
I'm not only committed to sobriety, but also to improving my health. It's almost a hobby to me now, and I'm getting a lot of motivation and hope from it.
I'm working on diet and exercise and mental health, too. I've lost ten pounds, gotten my blood pressure under control and am getting more exercise. I do have tingling that I think is neuropathy, but I didn't mention it to my Dr. Not sure why, I guess I will if it doesn't get better.
I hope you have a fantastic sober journey. Let us know how you're doing.