To feel this bad from whisky?

Ive been drinking almost daily since March, usually wine or light margaritas. Yesterday I only had nasty whisky and cheap orange juice. I had maybe 3 mixed drinks and Ive felt sooo bad since.
Not really hung over but my stomach hurts/ nauseous, my kidney area hurts and I feel almost fluish.
Only started feeling less bad 24 hours later. Normal or was this stuff toxic or something?