Max was diagnosed with slight hd about a year ago, I had noticed a "bunny hop" whenever we went out for a run together. I took him to my vet and we had xrays done ect, after that Max was put on strict diet, my vet told me the lighter he became the less problems he would have in the future. Well about a month and half ago his hip started acting up so I took him to the vet agian, he gave me a perscription for DERAMAXX 100mg, 1/2 a tablet every 24 hours. After the first day Max was moving around agian like nothing had happend, things were fine until about 3 days ago I heard him yelp so I ran in to see what happend (We have a cat and sometimes they play a little too rough) my question is this, the vet described it as what some people deal with when they have arthritis, so does that mean he'll have good days and bad days, does it just flair up out of no where? I'v been giving him SynoviG3 Soft Chews since the first day we found out he had mild hd, and it seems like it has helped, but seeing my poor guy in pain is pretty heart wrenching.