Welcome to Living With PsA! Hair loss is something that I have been dealing with and worrying about myself - but at the young age of 23. Congrats to you, though, on powering through your joint symptoms and continuing to keep working and remain active.
I wish your knee a speedy recovery - but in the meantime (while you probably spend some more time off your feet) I encourage you to start getting involved in discussions around here. You can meet and share your experiences with our many wonderful members, and if you’d like some beginner tips, check out the “How To Use This Site” tab up top.
Best wishes - and let me know if you have any questions or concerns.