I Use A Clitoral Vibrator And When I'm Finished I

I use a clitoral vibrator and when I'm finished I notice blood on it sometimes. I had a yeast infection or so I thought so about a month ago for a week and my clit bled while using a vibrator. My symptoms went away and I had no blood while using my vibrator. But now I still have some raw like feeling on the inside of my labia menorah around my clit again and it will sometimes burn when using soap. I use a plain safeguard bar of soap. It bled again while using my vibrator today. Are these std symptoms? My yeast infection symptoms came a day after having sex. Please help, thanks.