Can the police come into your house while you're drunk?

Okay long story short I got really drunk. I get very depressed for some reason when I am drunk. I was talking to a friend and I guess he thought that I was going to hurt myself (I had no intentions of doing so). So I lay in bed and am trying to sleep it off when I hear banging on my door. I finally get up and see that it is the police. Apparently my friend had called them. They barge into my home and start searching the place and go through my phone and see my texts. They conclude that I am suicidal. I tell them I am just drunk and have not desire to hurt myself. They force me to go to the hospital. So the real question I’m trying to ask is did they have the right to come into my home? I obviously was too out of it to stop them or tell them no. I feel as though my rights have been violated.