Do you get paranoid when your depression gets worse?

I've noticed when severe depression comes I become paranoid. One example if someone offers to make me food or pour me a drink my thoughts immediately think they going to poison it. So I decline the offer or say I'll do it myself. If they insist I must watch them do it.

It also gets to a point where I don't want to leave my home because I always have a feeling something bad is going to happen to me. It's an overwhelming feeling that makes me want to hide in my room. And that I don't want to go out with my friends.

About a month ago I was doing really well. I helped a friend move across the country I live in. The experience was so good I had no anxiety or paranoia at all. I was so care free. Not a single worry throughout the whole road trip and when I flew back on my own to where I live.

Now I'm back home becoming more and more depressed each day and I'm becoming scared and anxious about everything again.