i do think it could be a number of things.
when i was younger, i'd get like that each month from PMS.
i also used to get what felt like seasonal depression but instead of it being in the winter, it would be in the fall. one or two months, my PMS would be especially bad.
whenever i get sick, all i want to do is sleep, and then i'll get sick and realize what it is.
as others have said, medications can do all kinds of strange things to us.
and as you suggested, after awhile, it all gets so old, and we just don't feel like soldiering on anymore. think everyone needs a break now and then.
but trying to sort out the root of problems can be hard at times.
just be kind to yourself as you try to sort it out
