Wow, reading all this has made me feel damn lucky. I had knee surgery 43 years ago (1975) to remove a torn meniscus, a skiing injury. I was young (26), and even though it was before arthroscopic surgery was common (I was in a hospital for 2 weeks after surgery), I recovered quickly and have rarely had trouble again with that knee. I read all those knee problems here, and I feel like I got off easy.
Alex, if your blood pressure got up to 150/100, what was it before? Mine used to be nice and low when I was younger. But I'm no longer young, and prolonged prednisone has raised it significantly. I couldn't stop the prednisone, and my primary care doc said I was at the borderline of needing BP lowering medication. Instead, she suggested I buy one of those automatic blood pressure cuffs you can use at home. Practice using it every day, keep a log of my BP before and after exercise (2-3 mile walks), and see if I can regularly get lower BP readings. I found that using it everyday let me get much lower readings than I had in the doc's office. Apparently I wasn't relaxed at the doc's office – something known as white coat syndrome. I learned to relax before taking my BP, and significantly lowered the reading. It's not unlike people who do yoga or meditation.
I'm not trying to say that will work for you, it could very well be due to the nsaids. But I am suggesting it's worth a try. I bought an inexpensive automatic BP monitor at Amazon for about $30 or $40. Get the kind that wraps around your upper arm. It's more like the cuffs the docs have in their office. The monitors that go around your wrist give very different reading than the upper arm cuffs. If you do get one and monitor your BP daily, bring it with you the next time you see your primary care doc. Compare it's readings with what the doc has in the office.
Keep doing that PT! It's the key to recovery.