Headaches in proximity of people treated for cancer.

I have been in close proximity of people i know who are treated for cancer,
since so much people have this it was only a matter of time that people i know
would get this.
I'm having an increasing hard headache close to them.
it's very obvious their treatment or scans are the cause
because the feeling is very different from other headaches i have.
Anyone had this experience ?

radiation or chemo?  Because if you're really chemically sensitive, too, I could easily see this happening.  I'm glad I wasn't MCS when my mom had breast cancer.  Hadn't ever thought of this.

they did it all, but i don't know what they were having at the time i was in proximity of them.
hmmm... possible MCS reaction you say, i did't think about that...i have no idea if that can be the reason. need to look into that.