I have GERD as well. I've always believed my bruising easily was a result of my (too many) autoimmune diseases rather than my GERD. You could be right!

I had that when I was feeling the worst, just before I was finally diagnosed with ideopathic gastroparesis. When I brought that symptom to my doctor's attention she ordered blood tests to check my liver function and found some issues to further investigate. My liver checked out fine after more tests. It turns out I was just really dehydrated and undernourished at the time because I couldn't eat or drink enough due to my stomach emptying really super slow. Are you getting enough nutrition and staying hydrated?

I use to have brusing, for no known reason, I started googling and researching things out.

I finally realized we with GERD do not consume enough Vit C, since it is acid. I started taking a VIT C supplement that doesnt effect the stomach. Seems my bruising has cleared up, no more mystery bruises.

Lack of ViT C can cause bruising. I take ESTER-C

I also have fibro, which causes aches and some are known to get bruising from that also, But I would try the Vit C supplement first.

I WENT TO THE DOCTOR AND HAD BLOOD DRAWN AND I HAVE NEVER BRUISED AS BADLY AS I DID THIS TIME NOR HAVE I HAD SO MUCH BLOOD ON THE TISSUE AFTER I TOOK IT OFF. IT WAS JUST FULL OF IT. THE BRUISE IS STILL HERE AFTER 7 DAYS AND IT SCARED MY GRANDDAUGHTER. SHE WAS THERE WHEN THEY DREW THE BLOOD. SHE GAVE IT A KISS AND OF COURSE THAT MADE IT FEEL BETTER. LOL....

I FORGOT TO ADD THAT I HAVE ACHING LIMBS AS WELL BUT I HAVE FIBROMYALGIA SO I DON'T KNOW WHICH IS CAUSING WHAT ANYMORE.

I also bruise easily and ache all the time and I also have Fibromyalgia.