I am in a major slump right now, in every aspect. I feel tired all the time (even though I'm sleeping fine), have no motivation or interest to do lab work, and don't even want to eat. It's been really bad the past few weeks. My adviser had a grant due on July 2nd, so in the weeks leading up to that I was working 7 days a week, 10-12 hours a day, and getting a ton of things done. Then after July 4th I just lost all motivation. I've been checking out of work early, slacking off while at lab, and just avoiding lab work at all costs. I constantly feel guilty about not getting work done, but just can't seem to get myself out of this slump. Any suggestions??