from 6 months ago , I developed a swelling in ny right armpit and I found it accidently .. then after 4 months.. I started to feel cramps in my right lung and I always swallow mucous but I canot expel it out .. only when if I ran or do vigrous exercise or sometimes often at rest I expel phlegum with thin threads of fresh blood.. and from a month ago I am suffering from joint pain in my right leg even if I am at rest ... I also feel dizzy after eating a meal or even resting and this happened from 2 weeks only. Last 2 days, I developed a small hard mass nonpainful swelling in my neck and also small red spots on my hand palm... so is it a sign of leukemia. We have colon cancer inheridty in our family