I need help (guinea pig is active)!!!

Based on what you said, it sounds like an upper respiratory infection...very common in Guinea Pigs, esp in times of stress, cold, and when cedar shavings are used.

This normally causes discharge from the nose and/or eyes (causing one or both to remain closed). It also greatly interferes with their sense of smell and taste, making them refuse their food. I was told by one vet, that it also hinders their ability to drink water properly.

This IS life threatening...but there is an antibiotic that works quite well available from your vet. Assuming that this is what the problem is, you need meds ASAP.

Also note...an upper respiratory infection (assuming that's what the problem is) can also be a symptom of a greater problem. If this is an older guinea pig, there may be underlying issues, that has compromised its overall health, making her more susceptible to infection.

(for those who have stated that advise like this cannot be given via internet...all the above information I obtained directly from two different vets helping me care for guinea pigs at two of my previous jobs)

Good luck!!!

I HAVE seen them recover from infections like this!!!

Also, as far as food goes, it was always recommended to me to give them orange slices and banana. Both have a strong taste and smell that she may eat, and both provide vitamins she really needs right now.

(Edited to add... it's after hours for a vet, but try calling your local animal shelters. Many have antibiotics on hand, and are willing to hand them out in exchange for a donation. The med we always used for guineas was:

Sulfatrim

Active Ingredients: Sulfamethoxazole and Trimethoprim

Representative Names: Bactrim, Bactrim DS, Bethaprim, Co-trimoxazole, Cotrim, Cotrim DS, Septra, Septra DS, Sulfatrim

The dosage we used was .3 - .5 cc depending on the size of the guinea pig)

(Edited a second time to add: I am not a vet... My advise is based on what I would do if this were my pet. I'd pick up and run to a shelter demanding the antibiotics, and them take her to the vet the next day.)

Please make sure you find a cavy savvy vet as soon as possible, the majority of vets even if they say the normally treat guinea pigs, do not have a clue :/

Hunching up and lethargy are two symptoms that classify as an emergency and can occur over a wide spectrum of illnesses, have a read over this page and the rest of the Guinea Lynx site for more information - they can also help find you a good vet near you:

http://www.guinealynx.info/emergency.html

Guinea Lynx is the best medical resource for guinea pigs in existence These sites are also must haves for any guinea pig owner:

http://www.guineapigcages.com/ <- the best indoor habitat (can't stress how important that is to piggie health!!) and dietary resource.

http://www.cavyspirit.com/ <- the best behaviour and rescue resource.

http://www.guineapigcages.com/forum/...arts-info.html <- the best diet plan for piggies. I have that one printed out and stuck to my fridge!

I hope you get to a good vet soon - you say your vet mentioned weather, is your guinea pig housed outside? Stomach is a little vague also, definitely get to a good vet asap, I'll be thinking of you.