I also have a few friends/family in the medical field. I don't care enough to spend time trying to get them to guess at a diagnosis of a player they did not treat, to do so is speculation.
Look I am not one of the ones who agree with the way Kawhi handled things, that and the injury makes me wonder if Lakers should hesitate before looking to deal for him. If he proves healthy I say make a decent offer but still don't overpay. If he comes at a decent price in trade, great. Other wise the gamble Lakers made is the correct one even if he goes to Clips or stays.