Really worried about blood

Hi, I'm sorry to bother you with this but I'm really freaking out and need someone to talk too. I have always had loose bowels, I feel like I have IBS but have never been diagnoised. In the last few weeks I've started to have blood on the toilet paper and sometimes in the watery stools. The blood is mostly light red but sometimes it's been darker and I've seen a nurse and have done a FIT test and now waiting for results. I also did a home test and it came back negative but says is only 85% accurate. I just keep worrying so much that it's cancer, I'm a 42 year old male and usually pretty healthy about from the ongoing IBS symptoms. I know I just have to wait but any shared experiences would be greatful, thank you all.

Marc