Advice?

Hey guys, it's been a few months since my last time on here writing. Anyways, I just wanted to get some advice from others because I am lost at the moment and not sure what I should do. My boyfriend and I have been dating for the past 3 months now, but a few days ago. I started to get the cold shoulder and he started pushing me away. Or at least that's how I feel. He doesn't really texted me much anymore and he doesn't really like talking to me. We usually call every single night and talk until we both fell asleep. We always checked on each other and talked about our day. It felt like a dream and it was wonderful. Recently when he calls he just leaves and doesn't say anything. He doesn't even text. (Discord is what we call on to keep how long we can keep a call going). I always put little paragraphs in the morning for him to wake up to but all I get now is, "Sleep was eh, love you too and good morning". I feel like he is going through something but he doesn't want me to worry but him not talking to me is making me worry. This morning I called him but I didn't ring him, but he woke up but he never joined the call right away. It's been an hour and he's been online but not in the call. So I am thinking that he is talking to other people and that he is bored of me or something. That's just me over thinking and I know I shouldn't but I have bad anxiety and over thinking problems and trust issues. I trust him a lot I really do but it's other people I don't trust. I love him so much and I don't want to lose him. I am working on my over thinking and anxiety. I really am and it is getting better by the moments but I don't know. I just don't want to lose him. He means so much to me and I don't ever want to lose him. I want him in my future and I see him in it. Should I give him some space or something?