welcome, though suffering from all that pain must be hard.
i hope you're in less pain these days, or if not, i hope you've found things that help.
as far as i know, anti-inflammatories are often useless in treating hms-related pain because the chronic pain associated with hms isn't caused by an inflammation. at least, this is what i know as a patient. before i knew i had hms, i was given anti-inflammatories too and they only gave me stomach aches but had no effect on the pain.
what you wrote about getting tired a lot sounds very familiar. i'm in my thirties too. people sometimes tell me i'm ahead of my time because my body actually believes it's 90 years old.
my mother has hms too (and my maternal grandfather), but she was never diagnosed. she knows she has hms only because i was diagnosed. i think hms is often misdiagnosed; very often.
you might want to be extra careful with physiotherapy; it can be useful but it can also be harmful. if you can, try to find physiotherapists who are knowledgeable about hms and who know how to take it into consideration. the important thing is to strengthen your muscles so that they hold your skeleton in place (as much as possible) but you should be careful not to stretch your joints as far as they can go or they'll pop out. when you stretch, always stop before you reach your full range of motion. i think.
HMS/EDS Hypermobility type, Fibromyalgia, Osteoporosis, chronic pain syndrome and general non-specified nutsiness (GNSN)