Do I need to offer expiation for an oath I'm unsure about breaking?

Assalamu alaikum. I struggle with OCD and often make pointless oaths out of compulsion. They're usually vague, and I only jot down a few words to recall the conditions. I swore to stop searching online about a general topic I was fixated on. Later, a question about a different situation popped into my head, and I looked it up. It's loosely connected to that topic. I didn't clearly define what I promised not to search, and I can't remember exactly what I was thinking when I made the oath. While researching, I believed it didn't fall under the topic I vowed to avoid, otherwise I wouldn't have done it. I'm trying to be frugal, and I wouldn't fast in this heat over a trivial search. So, at that moment, I had no intention of breaking my oath. But now, I'm second-guessing myself and feeling like the question was too closely related to the topic of my oath. This might sound foolish. I'd feel shy asking anyone in real life, but I need a sensible opinion right now, or I'll lose my mind. My overthinking stops me from reasoning clearly about these things.