Do you see the LoR before the Professor submits it to Pharmcas? I read somewhere that it's bad to check the place where you have the option to see the LoR. I was sick for all 3 of my exams (2 exams, 1 final) for a class and had extra time to take it so I don't think the Professor likes it. I had a good relationship with the Professor though. It's just that I two have planned LoR so far, one from my Microbio Professor and hopeful a Pharmacist at my job and some schools require 2-4.