Husbands health

hey ladies, being on top of your health as a pregnant woman can be really hard and it is, on top of that my fiancé is having really bad back problems can you guys help me out? he gets back problems when he feels the cold weather, i dnt think it has to do with age but he's turning 30 in july. he hasn't seen a doc since he was a kid because his mom was always moving from the U.S to dominican republic, anyway he always asks me to put an icy hot patch & he works 6 days a week 10+ hour shifts, im about to make an appointment for him with my clinic but has anyone ever heard or experienced what this might be? im worried about my honey 💕