Wow I had a similer thing happen to me, and like you I swear by the fact guinea pigs are not for children. I had had pigs before but they were more my mums, so when I got my own I was over the moon. I called them Salt & Pepper. Unfortunatly it got very hot one night in my room so I thought I was doing the right thing by opening the windows and putting on my circulating fan. How wrong I was. Unfortunatly my little man Salt went down with pneumonia, and although people can tell me it wasnt my fault all they want I know i will always blame myself. That was a stupid mistake and I done all the research in the world before getting them and I still done that,I wont forgive myself for it and I was torn up after his death - he had a heart attack in my arms 24 hours later of syringe feeding
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Guinea pigs are so fragile and they get sick quickly and easily...they arent childrens pets IMO because so many things can go wrong and it will cause heartbreak and guilt..