What is going on?

I don't understand, where the tension that I'm feeling right now is coming from... Like... I don't understand... I readed comments from the post that I posted in other group and they were really sweet, but I was scared that the tension might come back because I readed those comments and I thought maybe I can talk to someone about it, and I felt really scared about it and I don't know why... I readed a book and I was feeling good but after few minutes I started to feel scared again that the tension might came back but I was scared to talk about it with someone... And now I feel tension again and I don't know why... Because of the thought about telling about it to someone or is it because I'm scared to talk about it with someone because I'm scared that tension will come back again if I will talk with someone about it... I don't know... I don't understand... Why I feel like it?