On the far end of the scale, if you always answer, "Would you like to help us carry this heavy stuff down these stairs?" with "No, in fact I would loathe that, but I will comply in order to maintain the social bonds that are necessary to sustain my chemically-driven life functions for the long term."... then that will be problematic for your relationships.

I'm like you, I say yes often, and I'm honest about how excited I am to do it... but it comes at a social cost.

Sometimes its better to fake it and be nice, even when you're bad at faking it.