It sounds like you might be in a vicious spiral, encouraging yourself to isolate yourself from others while feeling guilty for not being able to connect with your coworkers. Though there is a comfort in maintaining this status quo, it's important to break out of it when given the opportunity.
When you say you "don't feel you share a common interest", is that something you know, or just assume? There might be a coworker who shares your interests, even if they don't look like it. Alternatively, it's possible that they could grow to like something if you introduce them to it, and vice versa. If one of your hobbies involves going somewhere, ask if anyone wants to join.
At the moment, you're lucky enough to spend a lot of time with people who are nice to you on a regular basis. More introverted people might feel more comfortable with people that have a lot in common with them, but it doesn't have to be a requirement to get along. And who knows, they might know someone who does share your interests, and could introduce them to you.

What are your interests? If you want, I could give you some suggestions for activities with your coworkers.
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