For the last 7 days I ve felt off. My stomach felt full and uncomfortable. I had been prescribed a Zithromax and predizone 8 days ago for and asthma flare up. Typically these medications haven t given me any issues. the last 3 days I ve been less constipated and now able to pass normal size and shape stools, but they are really light in color, pale. I was thinking its probably all the gas in my system, but it s starting to raise some concerns as to whether there is something more going on? I m hungry, but can t eat a lot and gained ten pounds in one week. No, I didn t go crazy over Christmas, quite the opposite since I ve felt so full.