I Started Working Out A Few Months Back And Have

I started working out a few months back and have recently been starting to put on some actual muscle. By this I mean you can actually start to see them. I am slightly worried as when I grab at my bicep if I pinch lightly between the skin I can almost feel the different strands of muscle. Each strand individually. Maybe they’re tendons not muscle I don’t really know. Is this okay? The muscle doesn’t hurt or anything but it’s not soft either.