Hi

I am experiencing exactly the same thing. I injured my patellar tendon six months ago and was told swimming would be fine. Went to the pool and had to stop for the exact same reasons as you. The patellar tendonitis got worse so stopped doing everything while it healed.

Now the tendon is healing and I have started reabililitation over the last six weeks. the quadriceps exercises such as leg extentions are fine but eccentric work on that leg such as walking down stairs or swimming is agony.

My physio told me to grit my teeth and work trough it.

I would like to know if this is good advice.