low grade non hodgkins

Hi everyone, i was diagnosed last october with low grade nhl i was recalled after a mammogram as apparently it pickec up enlarged lymphnode in my right armpit, i had a ct scan and bone marrow biopsy last november, im on watch and wait and thankfully so far im doing good. I had a flu jab last thursday whicjh i thought id have to cancel as id had a cold but thankfully i managed to shake the cold off in a couple of days. When i went to bed on saturday night my left armpit felt very tender, my first thought wasnt the lymphoma starting but the flu jab and wondered if it was a side effect of that plus i was quite snuffly, i did ask a nurse friend of mine and she said not to worry it was more than likely the flu jab plus with my having had a cold it may have made the nodes a bit more sensitive, i know they can come up when youre not well. Has anyone else had experience of this after a flu jab? I did ask for the flu jab in the left arm as im right handed. I did take ibuprofen which stopped my armpit from hurting and it helped a great deal, its much bettr now. I was sent a letter from my surgery suggesting the flu jab as im in the "at risk" category. What annoys me is when im working in a shop i get customers coming in and coughing all over the place, i know i cant avoid all illnesses but it winds me up when others are so inconsiderate.