Can using sex toys or vibrator result in lumps near the clitoris?

Hello doctor,

I am a 21-year-old female. I am not quite sure where to start, so I guess I will just go from the very beginning. About two years ago I think, I was around 18 to 19 at the time, I was having personal time, and noticed that after I used a internal vibrator that I had, which I made sure to wash well with anti-bacterial soap before and after every time I used it, and stored it in a clean place as well, that there was a small, maybe pea sized hard lump on the left side of my clitoris, like right next to it but not on it. It was not sore unless I touched it and went away after about a day. But the thing is that it keeps coming back and there is not a pattern I can find as to when it appears other than that the only times it is shown up is after I have used an internal toy, like a vibrator or dildo, but even then it does not show up every single time when I use them and usually only appears after I have been using them for a while. I would say it is more likely that it will appear if I am using a toy like that either before or after my period and maybe sometimes around when I am ovulating but other than that it seems fairly random. I have only had sexual intercourse once, about a year ago, and I did make sure the guy was clean and definitely used a condom and was just super careful all around, plus the fact that it started showing up when I was still a virgin means that it is not an STD. I will say I have searched online about it before and most answers I have seen usually say it is a cyst of some kind. I have never tried popping it because it can be very tender if I touch it too much. Other than that, I will say that it just started appearing out of nowhere, like nothing out of the ordinary was happening downstairs around the time it started and, like I said before, I have only ever noticed it show up when I have used some kind of internal stimulus but it did not show up when I did have sex, just when I have used a dildo or vibrator. I am under Vyvanse medication 60 mg daily for ADHD. I also take Melatonin 10 mg daily, iron supplements and from an year, am am under Humira injection for psoriasis.