My 82 pound dog's heart beat is fast and he won't drink or eat anything. He's restless and he's been like this all night. My brother told me scared that he gave him some caffeine pills because he looked tired. He had about 10 or 20 pills, my brother wouldn't tell me exactly. Everyone else in my household isn't on board with thinking anything is wrong. It's the middle of the night and I woke up my mother and she said nothing is wrong. I'm so worried.He also won't move very far. He won't go outside and he won't even stand up without shaking. Does anyone think he's going to have a heart attack or his heart will explode? Is there any way to help him by myself? I'm just a highschooler who can't drive