I'm currently working on a new project that will get integrated into 3 more projects (of which all I'm partially responsible for). As of late, I've been hearing of certain demos and meetings that are happening that I'm not being scheduled to attend, where previously I was invited to them/similar ones. One was a weekly status meeting that stopped happening, another was a status meeting for a project I'm partially responsible for, and recently a co-worker was preparing a demo for one project I didn't know was happening, which I should have been prioritizing my work towards (my boss said I should but I wasn't aware of the urgency). A lot of the integration for the demo ended up being done by him, whereby he also seemed to have copied a lot of my code/rewrote quite a bit of stuff to get the final product (feel like I could have been more of a help?). I also find out about this mostly just from casual coworker conversation.
I'm still actively scheduled to work on these projects with hours forecasted accordingly for now but I feel out of the loop. Alot of the communication I had with my boss and co-workers now requires me to reach out versus hearing about it in a status meeting or having someone tell me directly.
Should I be worried about the lack of information sharing that I've been used to? Do I just need to accept that I will have to be more proactive from now on? Should I talk to my boss about this, and what might I say? This is also my first job out of college, and, while I was given a very good raise at the start of the year, I feel like my performance isn't that great and I have trouble keeping up with the speed of my coworkers (or perhaps I'm just being too hard on myself).