Should I be worried?

Nosebleeds isn't something that I get too often off, every now and then I guess like a normal person but lately it has been happening constantly. It started two days ago. It was night and I was watching TV when I suddenly realize blood on my shirt. Not only does it come out of my nose, but my throat too and I choke on it. It is so disgusting. It happened during dinner with Jesper and I had to run to the sink and he said that it looked like someone had been murdered in the sink. It has now happened six times in less than two days. It is honestly so scary and obviously I start expecting the worst haha but it is probably something else.

Does anyone have any idea what the cause can be? Or how to treat it? Please tell me! :)