I have been in hot springs many, many times only here in California. They feel GREAT when you are in them. But once you get out there is no difference. It is similar to taking a very hot bath, sometimes they make you feel better sometimes you feel weaker and dizzy. It wouldn't be worth a hike to me. But it does make your skin softer. I've had lupus for 3 years and over the past 3 years I've been in natural hot springs at least 7 times.... I still have lupus. So I don't think they really help. I'm sorry. I hope you feel better soon.
For I know the plans I have for you declares the Lord, plans for good and not evil to give you a future and a hope. Jeremiah 29:11