I've almost reached the end of my tether. I've had 4 concussions in 18 months, had a mild concussion 11 days ago and another potential mild concussion 3 weeks before that.

I've quit contact sports now and want to look after my long term health and then I go and have the worst experience.

I was just getting something from the boot of my car and we have a storm going on atm and the boot lid came down on the back of my head from the wind. Because I was so angry and annoyed I yanked my head out and actually someone managed to clobber the otherside of my head on the boot as I was holding it and lifting it off my head.

SO I am 11 days post concussion and just sustained 2 hard knocks to the back of my head. I have a huge headache and pressure in the back of my head and feel sick.

I'm honestly so over this and every single thing giving me a concussion or flare ups.

If this is another concussion, what dangers happen if I get on after sustaining one 11 days prior?