Hello ,I'm just as unfortunate as your Son. I've been Dealing with numerous Symptoms for 3 years. I've been to a couple Doctors, not telling them that I believe it's Long Covid ,trying to get a Diagnosis from them. They each have Treated ne with 2 Types of Steroids, that haven't done anything but cause more side effects and cost related increases. It's now a Day to Day thing , dealing with whatever comes my way. I've told my Wife that it's not going away ,any time soon. I lost my Brother in law to Covid Desth in January of 2021 at the age if 52 years. He left behind his Wife ,Daughter ,1 Grandson ,His Dad ,2 Sisters and multiple Family Members. Prayers for a Cure and Have a Blessed Day 🙏