Do Bleeding Gums, High Red Blood Cells And Bruises Indicate Leukemia?

Hi I'm a thirty year old female. I really need help. I'm so stressed out and confused right now. For the last few months I've been to the hospital and clinic. I live on a small Island so there's not much option. It all started by this tightening of my chest and heart palpitations. I went to the hospital and the doctor told me it was anxiety. It eventually went away on it's own. Then I menstruated twice for 2 moths, so I was sent for blood work and a gynecologist. Pap test and exam was normal, but my blood came back as having a little bit of low iron. The doctor suggested I take iron pills. I didn't take them for a month and ended up back at the hospital for another reason and they took my blood again which showed my iron was still low but had went up a bit without the iron pills. I started the supplements afterwards and went back to the hospital a month later cause my knee swell up a bit and I got a bruise on it as well as other smalls one's on my other leg. They ran another test and said that my everything was normal except my red hemoglobin's were a little small. I then went to the clinic and the doctor ordered more tests ( lupus, monopost, rheumatoid arthitis ) cause at this point I was getting aches and pains in my bones and joints as well as a few small bruises on my arms. Everything came back normal except my red blood cells are high and the mono came back positive. I asked the doctor why I tested positive for mono if I have no symptoms and he said I probably had it a long time ago. He also said that my pains were probably cause of Fibromyalgia and the bruises were just the way my skin is. Also in the course of these few months my gums did bleed a few times when I brushed my teeth, but not recently. I've been doing research online and I'm really scared I have Leukemia and I feel trapped and don't know what else to do. Please any advice would be appreciated. Sarah