Probably not a big deal but the pictures are not showing it. Keep an eye on things to see if it is getting worse. There are many things that can cause a spot on a leaf. Could be fly shit
I too am sorry for your loss. I have just recently gone through the same thing. It is just the worst anyone can imagine. Hang in. Things are supposed to get better with time. We can hope can't we. BTW - I'm from the States but both parents were born in Scotland. Gunns and MacDonalds.
I've got some white widow with almost solid white pistils and 80% or so cloudy trichomes. It is something I didn't expect. The plant is awesome and I really don't want to harvest too soon. Last run was same strain with totally a different look. I'm a little baffled at this point