Question about medication

I'm on a pack of steroids where I take 6 doses the first day and then one less dose everyday until it's finished.

Can it make you incredibly thirsty and dehydrate you? I drank like 10 water bottles today, before I even took all 6 doses.

I also have body aches but that could very well be because of the infection I'm fighting off.

The steroids is supposed to help with inflammation and ease the pain I'm in

But I feel like buying a swimming pool to jump into and drink all the water out of