feeling awful

diseased feeble ill sickly weak

debilitated down enfeebled indisposed sick wasting

below par down with rocky run down sick as a dog under the weather unwell

able fit healthy hearty sound strong well

happy

afflicted ailing diseased infirm poorly woozy

down

a wreck below par bummed down with feeling rotten feeling terrible got the bug indisposed laid low off one's feet on sick list out of sorts peaked queasy rotten run down running a temperature sick as a dog under the weather unhealthy unwell

healthy

good sound strong well