T minus 1 and counting

Last night i got home from work after an afternoon of struggling to work, and for the next 1-2 hours i just cried and felt helpless. I think i am as i would put it "coming up on a big one" prbably in the next couple of weeks i will sink into a deep depression with a good quanity of dispare. Fortunately these only last for a couple for days, but the before and after effects last for weeks.
One of my main concerns last night was that how can i not tell my wife and family how much i love them when they are there but when they arent the feelings are so powerfull.
Today i have been getting more and more emotional and it is only almost 11am.