We were a military family in 1975 - and moved from Germany to Oklahoma. When our belongings arrived in OK, it always takes some time to be notified and set up the delivery. Before we could receive our things, someone set fire to the storage facility. We lost everything we owned - of course the worst were the loss of all our family (baby & wedding) photos, and other personal irreplaceable items.
That was what I called my "mentally ill" year - I was DEPRESSED - gained 50 lbs - was in a fog and desperately needed counseling. In those "old" days there was a stygma against depression & counseling, so I never got it.
I survived - somehow - after about a year managed to get out of it. Never lost the weight...

But for years i'd think .. "don't we have such & such..." and then I'd remember "oh yes we lost it in the fire..."
Get counseling! Good luck.