Runny Nose in Dogs

I have a rescue labrador who is about 10 years old and has begun to act sick. He has had a runny nose with clear discharge and a lot of sneezing. He has also had a loss of appetite and will occasionally vomit. At night you can hear his stomach gurgle and he is also extremely gassy and has horrendous breath. We have seen the vet about several moveable fatty lumps which were determined to be benign but I have found a harder bump on his side about the size of a pea and doesn't move. He has also acted more tired. He is older and has arthritis so I understand he may be lazier but after losing my 4 year old English springer to Lymphoma I want to make sure we detect any problems early on.

My miniature poodle's nose will start running and it is like someone turned on a faucet. Her whole face gets wet and and she sneezes and she acts like her nose is stuffed up the way she breathes. Then it seems to pass. A little while later it happens again. The secretions are completely clear like water without any odor.

Berkeley is a 2 yr old Bernese Mountain Dog. She recently had surgery to remove her mammary glands (MON) for testing to check for cancer as she had one severely enlarged gland. No cancer was found (FRI). She was kept under observation after surgery in the vets for a week. She came home (MON) with a slightly congested sound in her nose like a stuffy sound. When I took her back to the vet (THU) he said it might be due to the tube they had in her throat during anesthesia. I asked for an extra round of antibiotics just in case so she didn't get a secondary infection. (FRI) she started to have clear nasal discharge. (SAT) today she has yellowish discharge and sounds more congested. She has an appointment on (MON) to begin removing her stitches. I am going to call them Monday morning before her appointment to let them know about this. But in the meantime, I was wondering if this is something I should be concerned about. I've lost so much sleep worrying about my pup. She's eating and drinking fine, no fever, no vomiting, going potty fine, and has energy. To me, it seems like a cold. But I don't know if dogs can get colds.

Our 4 month Cocker spaniel has had what seems to be kennel cough and was given anti inflammatories to help her cough she has been eating great, lots of energy, normal temperature etc. She stopped coughing for a day or two then we noticed she started to cough again and has had lots of nasal discharge a clear / white colour and started to have a productive cough, this was constant. ( still she was eating and had lots of energy etc.) We took her back to the vets and she deemed it to be a secondary infection, so prescribed Nisamox for 10 days. We are on day 9 now and her cough and nasal discharge went within the first two days, no more keeping her awake at night etc. However her nose this morning has had some discharge and I'm worried its something else.

Hello, I recused a 10 month old Shar-Pei Pit mix from a shelter on Wednesday. He was neutered on Tuesday. Since then he has a yellow discharge constantly and runny nose followed with sneezing. He’s eating and drinking normal. I’ve noticed when he tries to urinate sometimes it’s a lot, others it’s like he needs to go but doesn’t. I’m wondering if he possibly developed an infection? Any advice is extremely appreciated! Thank you