Being careful in trying out new exercises must be remember when in pain. Consult your doctor first to check any serious injury, and seek for a trained Pilates instructor if you are worried about hurting yourself. But is it too expensive taking Pilates? There are lots of exercises for back pain without any aid of any instructors, and won’t even hurt your pocket. If you have home gym equipments, try incorporating your machine with pelvic rolls, back extensions, etc. Just make sure you’re machine gives you smooth flow and won’t give you reclining and declining position while having your workout. Hope this helps!