Hello~You really do need to see doctor again, your infection obviously has not cleared up, which is why you have the swollen Lymph Nodes and blood in your sputum.
Have a done any tests for leukemia, I am not saying you have it, but the high white blood count and random bruising do have me concerned, I would certainly ask you GP about this possibility.
I hope you feel better soon.
You've sure been through the ringer. Yes, go back to the doctor. That's the prudent thing to do. I wouldn't be alarmed as some viruses/ infections start overlapping and people have a hard time getting better but do. You will, I'm sure. So, hang in there and see what the doctor says this time. good luck