What follow up should I request for this medical issue [slightly NSFW]?

For at least a few months now, I’ve been having an intermittent stabbing / sometimes burning sensation in my right breast. It doesn’t happen most days, but on the days it does, the pain repeats every few seconds and is very distracting. It has even woken me up at night on occasion. It’s not confined to any particular place in my breast; it’s feels like it’s happening on both the left and right sides.

I mentioned it to my PCP last time I saw her, and she did a quick feel and didn’t feel lumps or anything. She thinks it’s likely hormonal and asked me to pay attention to when it happens in relation to my cycle. Since then, I’ve noticed that it seems to happen somewhat more frequently in the week leading up to my period, but it’s not completely confined to any particular time in my cycle.

I’m concerned and also annoyed by this issue. What would you suggest I do as follow up? Is there any particular test I should insist upon or anything?

I already have an appointment scheduled to see my PCP later this month for an unrelated issue, but I want to bring this up with her again. Just trying to decide what exactly to ask for.