My baby fussy since getting sick

So about a week or so ago my 8 month old got sick. Well he’s over the sickness now. He’s been EXTREMELY fussy, crys constantly. Don’t really have anything to do with his toys anymore. I don’t know what to do… and I’m about to go stir crazy. Has anyone experienced this? He’s my 4th baby and I have not dealt with this with my other 3.

Maybe still just run down wants them cuddles.