Hi Tisha,
I have an older son who is 28, and actually for at least 10 years he doesn't answer calls often or read my texts. He is very independent I suppose.
Maybe it is normal not to talk to parents that often. If I remember correctly I didn't think too much of my parents when I was in my 20's. I don't know how old your son is.

The thing I found best was to let it go for a while and trust he was o.k. It's very easy to say but hard to do. I get that you are missing him. I really do.... it's as though, for me anyway, what happened to you all of the sudden that you dont reply to my calls and tell me you don't bother reading my texts. My son is a good guy but I think if he would talk to me more he doesn't want to seem like he needs his mother for anything. Kind of an "I'm grown and I don't need my mothers attention any more, and all she wants is for me to reassure her"... that is my feeling in my situation. Wishing you the best.