How fast can Blood Cancers or Anemia develop?

Hi all, Long story short 8 weeks I got sick with a fever and a wet cough. Fever was gone after 3 days. Initially the wet cough had yellow/green phlegm, afterwards it became white phlegm for another 4 weeks or before it finally disappeared. During the past 8 weeks I haven't slept properly. Initially lots of sleepless nights and then sleep became very broken and interrupted. These days I wake up every 1-2 hours and would get 6-7 hours of interrupted sleep a night if I'm lucky. I have also been very fatigued with not much energy. From about 3-4 weeks ago I've started doing some light exercise, i.e. push-ups, sit-ups, easy cycling. I've also been doing some light jogging in the last 2 weeks. This Monday I did a CRP test which showed that the infection was gone. Doctor thinks it might have been the Coronavirus but there is no way to be certain. My anxiety has been extremely high. I can't stop worrying about my health. Normally I am a very energetic and active 32 year old and never been unwell for this long. I feel my breathing is not right, although lungs have been checked by the doctors twice. Nowadays I pay attention to my every breath, and I feel that I'm breathing deeper than normal. At night I sometimes wake up and feel like I'm breathing fast. My biggest concern is that the fatigue also has another underlying issue. Some symptoms seem to be consistent with anemia. So my question is how fast can anemia develop? Before I had the fever I felt fine and normal. 10 weeks ago (so 2 weeks before the fever) I did a pilot medical and my haemoglobin levels were normal, but I don't know the exact value. So can anemia develop so fast that it takes effect in a number of weeks? I'm paranoid that I have some sort of blood cancer.... Many thanks

Hi there. Whoa! Relax. From what you have described it sounds very much like you’ve had some kind of chest infection. Many years ago i got pleurisy & even though i got over the initial infection with antibiotics i was still very fatigued & still felt unwell for at least 3 months after. Even my appetite was affected for some time. (didn’t want to eat much) but i got better eventually. This does not sound like any kind of cancer or aneamia. It just sounds like your body is still recovering from some kind of infection. Eat a balanced diet, try & get some sleep & try not to think of the horrible things this could be. Health anxiety is very real, but don’t let it dominate your life. Good luck.

Thanks. I know I need to relax more.

This week (and I think also some days last week) I’ve been having slight sore throat on and off, it doesn’t last too long. Usually it happens after I exercise or exert some energy. Also I notice after I exercise or use energy I sometimes sneeze once and get a slightly runny nose.

My body is on very high alert right now and I’m sensitive to any changes or movement. I’ve been having some heart palpitations as well. It is not beating rapidly, it’s just that I can feel it beating.

Yesterday I went out a couple of times, did some exercise at home and also went for a light 3km jog which I managed. Today I felt more tired than usual I think because from doing a lot yesterday.

Just very anxious as to when I get can back to normal!

Acute leukemias — which are incredibly rare — are the most rapidly progressing cancer we know of. The white cells in the blood grow very quickly, over a matter of days to weeks. Sometimes a patient with acute leukemia has no symptoms or has normal blood work even a few weeks or months before the diagnosis.