@Nine It might be, but I haven't been able to get a good view of it. It's buzzing is much lower pitched than a mosquito though. Certainly not palm sized though, maybe a couple times larger than a mosquito. I don't think it's a moth or anything, because it did seem to fly like a mosquito.
(If it helps any I'm in Europe, which might narrow down options somewhat)
I just hope it's harmless.
@BatElite honestly it might be just a big mosquito tbh ._.; If it's female that's the bitey ones, males eat nectar from plants instead.