Trouble Feeling Good

Lately, when I go to masturbate, I just can't feel good. I feel like I'm going to orgasm but then I just can't. I can orgasm with my boyfriend during sex just fine, but I can't by myself. It's been going on like this for about a week and it's honestly making me super upset. I use a vibrator and have been for the past couple years, but I recently bought a new one. I'm not sure if using this new one has anything to do with this.

Has anyone else gone through this or something similar?