I think I am having some kind of psycological problems with EtBr. Every time I handle them, like the gel, I kind of worry too much, or I am just being really careful. And this might have some intense effects on my nerves. Usually after the work I feel headache. Kind of like when I was too nervous or under a lot of pressure. I don’t know what to do. Maybe I just need to get used to it. But I have being working with it for a long time by now.
EtBr does not cause headache and I am sure I am not contaiminated. EtBr causes cancer and tumor instead of headache.