Need help and tips about post operative care. One week ago my guinea pig (male) had a surgery for removing big cyst/tumor on his left breast. The surgery went well but the post surgery isn't great. My piggy now barely eats and drinks, he lost significant amount of weight and lost some of his hair. I try to hand feed him but he resists, back's off and squeals. Before the surgery he weighted around 1.2kg, after one or two days he weighted 1kg and now he weights around 850gr. I don't know what to do. Where I live there isn't specific vet's that specialize in guinea pig's, and there is almost zero-to-none medication for them. After the surgery the vet gave him vitamin C and some antibiotic in form of injection but nothing more. The hair he loss is on his chin, below his mouth, and on the abdomen where his breasts are(also his lower legs). Another thing is his poop is very little, compared to before. He doesn't even like his favorite food, eats only once or twice a day and in very little amounts. Every time I try to handfeed him he spits the food, and turn's his back on me. The piggy is almost 6 years old. Are the above symptoms "normal" after that kind of surgery? Will he recover and go back to normal, as he was before? Any help is appreciated! Thanks in advance!