my German Shepard, Yogi, is 4 years old and has three large masses! the first one appeared about a week ago and was about the size of a small baseball on his left shoulder. he showed no pain and no abnormal behavior so I decided to wait to ask the vet once I went in for their annual vaccine appt in another week or two. This baseball sized mass also has been shrinking, it was way largre but recently went down in size. Then last night, I found two more huge masses that must have appeared overnight!!! There is one on his other shoulder that is hard and not nearly as moveable as the smaller one and it seems to itch and hurt. seems more like a sore pain than a sharp pain. It is about the size of a grapefruit but its oval. The third one is on his chest/stomach starting between his front legs ( on the same side as the large shoulder mass) and ends about 3-4 inches after passing his front legs. this one seems to be slightly painful as well. Although, this one is very squishy and looks fluid-like. It is very moveable and looks like an old woman's boob(im not sure how else to describe it), jiggly and saggy on his chest, but it is not firm and not really liquid feeling either. this lump is about the size of the other large mass, maybe even bigger. My dog also had a really hot nose last night and was panting (aka he was most likely running a fever) does anyone have any clue what these could be?? he seems too young for it to cancer or lipomas. also, tumors are pretty painless I thought and do not shrink or appear so quickly? His food diet has been consistent. Could he have allergies to tick bites? I found a tick in the dog room a couple days ago, could this be a major allergic reaction to something? I gave him some Benadryl just in case it was something like that already just in case. i cannot see a vet till Monday because she does not work on weekends or I would have brought him in today! he still is very active and has a normal appetite but does seem to act a little less active than usual.