<human>: Condense the text into a few key points

I have a 14/15 year old dog (we're not sure how old he was when we got him 12 years ago) who is on a few medications but is still doing pretty well. I wish I had the names of the meds but unfortunately I don't. My dog has been having a lot of trouble sleeping at night and has been heavily panting at all hours. He has been very dizzy and walking sideways and when we took him to the vet he said that nothing was wrong.

I thought that maybe he was dehydrated because his nose is dry (I work at an animal shelter so I know a couple of things) but he is having trouble leaning down to his bowl lately, probably why he's dehydrated. Last night I gave him water through a pipet and he slept through the whole night and went to the bathroom in the morning more than he has in weeks. My mom gave him water through the pipet all day and I gave him more before bed and he seems to be doing a lot better.

I just wanted to make sure that this was safe and that there are no horror stories about giving your dog too much water or something. We're not giving him a crazy amount of water, just about half of a cup today. He is still drinking a little bit out of his bowl.
<bot>: Giving my dog water from a pipet because he has not been leaning down to his water bowl lately. Want to make sure this is safe.