Falling apart

I feel my boyfriend may be falling apart.... Yesterday I barely talked to him he said he wasn't feeling good.... Today he called me early this morning said I'ma call when I get up.. Got up at 12/1pm been calling and texting and nothing.... Just like yesterday.....I was just visiting him last week the 24th-28th....I know the distance gets to both of us but I'm being strong cause The 26th of may I'm going back home for good and we can be a family and not worry about me leaving his side again! I want him to be strong also but it may be getting to him....IDK wat to do?!! I'm so confused... No rude comments just some good advice would be nice!! TIA