trusting one's own senses

It's hard when you have problems like anxiety and depression. You never know whether you can trust your senses. My boyfriend, like me, has chronic health issues. He sleeps a lot, and as a result, he usually falls through on plans because he sleeps through when we're supposed to go out. Which would be okay...but I am starting to think he is using sleeping or his illness as an excuse to not see me. I'm finding that he's spending time doing other things when he implies that he's sick or sleeping. I feel something isn't right, but then I tell myself it could all be in my head. He has an excuse for everything, and it sounds legitimate enough, but I suppose it's a woman's intuition telling me something isn't right. Or is it in my head? I don't know who or what to trust anymore.