Anxiety on a Teaching Degree

Hello,

I am currently in my first year doing a teaching degree and I have suffered with anxiety all my life. I have been dealing with it really well, but a few days ago, I witnessed a friend falling ill whilst at university and having to be taken to hospital. The whole situation was terrifying, and I think I went into a state of shock afterwards. Since then, I have had an overwhelming sense of anxiety, not just in social situations, but also just sitting around at home.

I knew what to do if my friend fell ill, as she had spoken about it in the past, but I just panicked and let others take over. It scares me because she's my friend, and what if it happens again when she's alone with me? I don't know how I'll react.

I was wondering if it would be OK to speak to my lecturer about this. Would they kick me off the course for poor mental health? I don't really know what I'd gain from speaking to my lecturer, but I don't really know what else to do.

I suppose I'm just posting this as a way of seeing what others would do in my situation. Am I overreacting? Should I just carry on and will this eventually just go away?

I could barely concentrate in my lecture the other day because I just felt so sick with anxiety, I'm worried that it will have a negative effect on my education.

Thanks for your help.