Hello my name is Grace and I own a male Abyssinian Guinea Pig I purchased him at Pet Smart on February 21st of 2015. Hes been one healthy pig until recently , I started noticing that he had a strong odor to him smelled like a wet sock I then discovered he had this white yellowy-ish creamy stuff under his lips it hit me that his food bowl still looked full as if I just refilled it. I searched up everything I could on the internet to see what may be wrong with him I have yet to find an answer. He is drinking water but not himself he seems weak and just plops himself down where ever , He also seems like he is losing a bit of weight. His cage is near the window elevated near my bed in my room it does get a little hot but I usually point the fan in his direction. PLEASE PLEASE Help me figure out whats going on with him, I dont want to lose my piggy ! Thank You .