If you're asking the question, the answer's probably yes. But let's get specific.
Are you having difficulty doing your daily chores or work tasks due to pain, loss of range of motion (just can't reach that high shelf), or weakness? Then, yes.
Are you looking to minimize the risk of injury? Then, yes.
Are you having a musculoskeletal issue (muscle, ligament, nerve, tendon, bone) that's not resolving with time and your own efforts (ice, heat, over-the-counter drugs, trying the thing your neighbor did)? Then, yes.
How about a list?
Top Ten Reasons To Seek Physical Therapy:
1. You're in pain.
2. You're injured.
3. You want to avoid surgery.
4. You've recently had surgery.
5. You're about to have surgery.
6. You're not moving as easily as you used to.
7. You've fallen for no good reason.
8. You've fallen more than once in the last six months.
9. You hate asking for help when you're perfectly capable of doing it yourself, but for some reason you aren't capable right now.
10. You gardened fiercely over the weekend and now your—back, shoulder, neck, hip—is a wreck.
Injury occurs when load exceeds capacity. You've pushed too hard or worked too long and your body responds with aching, burning, stabbing, and/or throbbing sensations. Or your body responds with tenderness or abnormal tension. If you've really done yourself in, your body responds with an all-out inflammatory avalanche of swelling, heat, sensitivity, pain, and reduced motion. These are all signals that load is exceeding (or has exceeded) capacity, and you need to back off and better prepare yourself for the task no matter what it is.
Back to the questions.
Is there a physical reason you've stopped doing something you love to do?
Is there a physical reason making it difficult to do something you love to do?
Then yes, you need physical therapy.