Boyfriend having “issues”

Hey guys! So recently me and my boyfriend just overcame a wicked stomach bug (only lasted two days no throw up but stomach wrenching) but for the last two days he’s not been able to get it up! We have tried searching everywhere to find if things like A cold or the stomach bug (he had a cold right before and is still kinda dealing with it) and he’s worried about his dude having issues. This has never happened typically he is on like the light above your oven but not for the last three days (one day he was actually sick)! Any ideas or responses?