I'm having a physical problem for about 4 years by now that's really making walking or just standing insufferable (even for a few seconds). I can't do any fitness and it really messes my physical health up (e.g. I even have a hard time going to bed because I'm so far from being exhausted at the end of the day). So I went to a lot of doctors over the years and I've been suggested to strengthen a specific area of my legs by doing stretches.
My issue is that no matter how much time passes which in I'm doing the stretches which my physiotherapist told me to do, I see no improvement whatsoever.
So walking doesn't hurt any less than before, and I can't stretch my legs any more than I could months ago or before I even started.
In order to avoid my question being too localized, I'm simply asking what should you do when you exercise and see no benefit at all and why could that happen.
P.S. Should it matter: some hours after stretching I feel like the area I've been stretching is actually extremely tensed. Is it normal or an indicator I'm doing something wrong?