he was fully potty trained i spent the first 1 and 1/2 years with him as i was unemployed now i am back to work and working full time. i started working again in november and within the last 2-3 months he started this peeing in the house.
First thing should be a trip to the vet to rule out physiological causes, like a urinary tract infection or bladder stones. If there's no physical problem, return to a good housetraining protocol (lots of good info here and practice until perfect.
I agree, if it's a recent thing, it could be something medical. Also, changes in routine can cause setbacks in potty training, it's actually quite common. So, he had your attention at home for a long time, now you are gone. Go back to the basics of potty training, as long as it's nothing medical.