Guilt is literally making me ill.

I have felt guilty for things I’ve said or done for a while now. I can’t do that anymore because it’s making me physically ill. I have insomnia so sleeping has been an on / off thing. The fact that my brain keeps making me feel guilty during the night doesn’t help. I’ve apologised. I can’t feel this way any longer it’s affecting how I function. Physically I’m in pain with my knee and finger. I’m on medication for that and still it’s not helping much. I’m feeling physically so awful due to lack of sleep and those physical issues. Guilt and how others have made me feel aren’t helping.