Thoughts? could physical therapy help my lower back pain?

Very likely....: Most adults will have back pain at some point in their lifetime. Common causes are musculoskeletal, strains, sprains, etc. In the absence of any neurological issues (ie. Muscle weakness) initial treatment includes: nsaid's (like ibuprofen), activity modification, stretching, and physical therapy. See your pcp for a prescription.....

Very likely: Regardless of cause, appropriate treatment can really make a difference. But recommend you be proactive, and have therapist teach you a home maintenance/stabilization approach. My favorites are the mckenzie lumbar spine exercises.