What were your leukemia symptoms?

Today I was out shopping, and I was eating something in the food court. There was a doctor at the next table, who asked me if I was well. I asked him why. He told me that he had noticed my pale pallor, and the patches of red spots on my legs where I've been bleeding under the skin. He said he didn't want to alarm me, but suggested I have it checked out as it could be something serious, such as leukemia.

I've been so busy with my studies that I haven't really had much time to evaluate my health.

Since about February, I've had bleeding gums and a mouth full of ulcers. I just put it down to stress and a vitamin deficiency, and started to take a multivitamin, but four months later, and it hasn't made any difference. I even invested in a medicated mouthwash, which didn't help either. I suppose the worst things that have been bothering are the fatigue, shortness of breath, poor circulation and the bad pain in my legs and knees, so much so that I'm forced to get up and take painkillers in the middle of the night.

I'm not even sure what the symptoms of leukemia are, but I've certainly become curious.

Clearly I'm not asking for an internet diagnosis, as what I'm experiencing is no doubt connected to a whole plethora of medical problems. I'd just like to know what you were experiencing when you were first diagnosed.