bf stressed

so my bf has been really stressed out with work and i’ve been really energetic and I feel like i’m being annoying. he hasn’t complained about me ever but it’s just my own personal feeling. idk how to manage someone who is super stressed out. I feel like anything I do will annoy them. i told him i’m there for him and stuff but idk it makes me sad bc when he’s stressed he doesn’t put in as much effort as he used to. it makes me scared. any advice?