My anxiety is in overdrive

I was talking to an old school friend Friday, we live near each other and often talk. We were very close friends at one point and as a young teenager I practically lived at her house. We are now both 40 and remained friends, not close friends but friends all the same. Well she told me some news.... She has breast cancer. She has 2 lumps, one is stage 1 and the other is stage 2, so she's pretty lucky to have caught it early. She will have an operation to remove the breast and no further treatment is needed... Thankfully!

She is very positive about it and is coping amazingly!

Ever since I found out I've been so anxious, I think it's because it's someone the exact same age as me and I had a sharp awakening that no one is safe, it can happen to us at any time. Since then I'm so worried about what I'd do if it was me. Like I noticed a little lump on my neck, I know it's a pimple because I've had loads of them in the past and it's the exact same as the other times. If I didn't know about my friends cancer I wouldn't even think twice about the pimple. But now I'm scrutinising everything and I'm driving myself crazy. God my friend is so strong! She's living with this and is amazing. I have one pimple on my neck and I'm freaking out. Why am I so weird. I hate being anxious and overthinking