J.E.
Go see the doctor. RSV is a very common virus and this is a bad time of year for it, and it can get out of control easily. Most children have it sevearl times by the time they're 3, but you have to treat the sysptons. My nephew is 3 months old and was having similar symptons. He was very congested and not getting better, he didn't have a fever either. He did start wheezing a little. The gave him abuterol to give him through a nebulizer. It's the same type of thing they give people who are having asthma attacks, it helps to open up their airways and also loosens up the congestion so you can suck it out.