I feel like I’m losing my sanity. 😩

So

About a week ago, my kiddo was not eating well and then he went on to have a fever about 3 days after that for 3 days. Then the fever resolved and he’s been crying soooooo much. He will be okay if he’s carried but as soon as he’s put down it’s complete melt down. He wakes up from 2nd nap and it’s inconsolable crying. It’s been going on for the past 3 days. I took him to urgent care and doctor appt thinking he was in pain and nothing seems to be wrong. All they say is that it might be a virus and just to continue Motrin/Tylenol which don’t seem to help anyway. Anyone deal with this? He’s 20 months old, sleep is okay, he just still doesn’t want to eat much. He does have a habit of picking up stuff off the floor and eating it so we thought maybe stomach bug but he doesn’t have any diarrhea or vomiting. I’m at a loss. I have my 5 month old and am once again pregnant and I am beyond exhausted. Any advice would be appreciated!