We took Carmel to the vet the other day, and had an ultrasound done on her and bloodwork. The vet we saw didn't see or detect anything out of the ordinary. Me and my husband are baffled. She just recently lost her "sister" Alfie and could it be the stress she is under? She lost quite a bit of weight and the vet might think it might be she has too much calcium. We were given the option of spaying her. The hair loss too is baffling us. It is bilateral, but there isn't any scabs or anything. If there is anyone who might have some advice to share with us, me and my husband would appricate it! Like I said, we might have to end up spaying her. Also, if anyone had any experience spaying a 4 1/2 year old piggie, I would like you to share that with us. Thanks!