My name is XXXXX XXXXX I'm a biologist with many years of experience in the field of dogs. I'm sorry to hear of your concerns. Dogs can sense certain conditions through their sense of smell. They have been trained to alert their owners of impending epileptic seizures, low blood sugar, and heart problems. Some dogs have been trained to sniff out cancers. You can read more about these skills here:http://www.nbcnews.com/id/5183290/ns/health-pet_health/t/there-doctor-or-dog-house/#.UlThpiT4tsc
But before you decide you have some horrible disease, you need to be aware that dogs can smell very faint odors and react to them. A minor health condition could cause them to react strangely. So could an unfamiliar odor on your clothes - a food, another dog, some other person's scent, cologne, etc. The possibilities are endless, including many that would never occur to we humans.
To ease your mind, it would be best to make an appointment with your doctor and tell him/her of your concerns. The dogs may be upset about something totally unrelated to your health, but if something is wrong, it would be better to catch it early, than to let it drag on. I hope it will turn out to be nothing.
My goal is to provide you with excellent service – if you feel you have gotten anything less, please reply back, I am happy to address follow-up questions. Please remember to rate my service only after you have all the information you need. Thank you!