Do Nosebleeds, Mouth Ulcers And Random Bruises On The Body Indicative Of Leukaemia?

Do I have leukemia? I ve been really scared because for the past 2 months, these symptoms have been present. - Nosebleeds (I had 2 random nosebleeds) -Pain in spleen area (Its very minor, it hasn t gotten worse, and doesn t occur too often) -Blood in stool (happened twice, I think this might be due to a minor ulcer, but could also be leukemia) -Bone and joint pain (very minor, doesn t occur too often, happens on knee joint, sometimes on leg bone, and arm bone) -Petechiae (not a lot, some come out of nowhere but fade the next day, minor) -mouth ulcers (2 random mouth ulcers, minor) -Bruises (I found 2 random bruises, one on arm, one on leg, I don t remember where they came from, minor) What really concerns me is the spleen pain. Yeah its very minor, and it doesn t occur too often and only lasts like 10 seconds, but still, with all these other symptoms plus the spleen pain, I m really scared it might be leukemia