Is This True Or A Very Well Thought Out Lie?

I am a girl of 25 and studying in another country. I'm here alone. Before I left, my friend promised to come for Christmas and New Year, to see me as a guest. He keeps telling me how much he loves me. Be nice. We often hear each other on Skype. The problem is that he has a health problem. And just a few days before he left, it worsened. At least that's what he tells me. He was lying on a bed and could not walk because his legs hurt. And this is exactly 2 days before the date for the trip he had set. He tells me he bought things for the trip, even a ticket. But we talk more often and see each other less on camera. I haven't seen him on camera for a few days and what's going on. On the one hand, I think it's bad luck on the other, and I'm starting to think that there is some other reason to postpone the trip, and he doesn't want to tell me. He told me that when he got better he would come ... But, I don't know when this will happen. I have lost confidence in men because of an old bad experience .. Do you think it is possible to pretend to be sick. Would one lie about such a serious thing as health I bet a lot on this man and I'm afraid of being lied to? He knows very well that I can't check these things, but on the other hand we have known each other for a long time and he lives in my hometown. Everyone knows him, as I do. He even tells my mother the same thing, that it's bad. However, she has not seen him since she said he was ill. Would it be weird if I sent her to see him? Given that she had never been to them before and had not been invited? Would one lie about such a serious thing as health? I bet a lot on this man and I'm afraid of being lied to? He knows very well that I can't check these things, but on the other hand we have known each other for a long time and he lives in my hometown. Everyone knows him, as I do. He even tells my mother the same thing, that it's bad. However, she has not seen him since she said he was ill. Would it be weird if I sent her to see him? Given that she had never been to them before and had not been invited? Would one lie about such a serious thing as health? I bet a lot on this man and I'm afraid of being lied to? He knows very well that I can't check these things, but on the other hand we have known each other for a long time and he lives in my hometown. Everyone knows him, as I do. He even tells my mother the same thing, that it's bad. However, she has not seen him since she said he was ill. Would it be weird if I sent her to see him? Given that she had never been to them before and had not been invited?