FTM Baby throwing up mucus need advice

My baby has no fever and no sign of sickness. However he has vomited mucus 4 days in a row once a day. He has been able to eat and drink fine, but he vomits a bunch of clear mucus once a day then seem to be “comfortable” and can immediately eat and drink after getting it out. His nose is not congested and there is literally no other sign of sickness. Could this be a weird kind of cold? Even though his nose isn’t congested or no fever? I’m a first time mom, so I appreciate any advice. He’s getting plenty of foods and fluids, so dehydration is not a concern of mine. I may take him to the doctor tomorrow if it’s still happening.