I suffer depression but today I felt better somehow, I think is because I was self harming yesterday, I was walking at the beach feeling good listening music but then I saw a dog coming next to me and I had an instant reaction of danger and closed my eyes because i thought the dog was going to attack me (I don't use to be scary), mins ago I was doing self harm and I thought there was something like an insect walking on my finger and had the same reaction , I think is something going on in my brain but I can't figure it out, what is it?