brain tumor or stress?

[idontknowwhatnametouse]

   I woke up one day with neck stiff.  I have a newborn baby, and I thought it was from me falling asleep in a weird position while holding him.  A week later I caught a bad cold, drainage horrible, lost my voice.  I am breastfeeding so I didn't want to take anything for my cold... it seemed to get better.  
  Now it has been 1 1/2 months since I woke up with the stiff neck.  It is better, but this past Monday I notice my lymph nodes on LT side of neck were swollen bigger than I've ever seen them.  I went to the doctor, and showed him my lymph nodes.  I told him I had some red very tender bumps on my head.  He said they were shingles.  I'm only 34yr old female.  I thought only older people got shingles.  I have been under a lot of stress.  The baby hasn't been sleeping well, and he had been sick with cold also.  I only get to sleep average of 4-5 hours a night, sometimes less, for the past 3 1/2 months.  My evenings are horrible trying to help 9 yr old with homework, clean house, feed baby, and try to cook all at the same time.  I have felt very overwhelmed.  
     But now I'm freaking out because I've been online looking at different symptoms.  I have had a stiff neck, headache (better now), swollen lymphnodes (lymph's are shrinking), a few times in the past few months I will see a few seconds of little flashing lights (looks like shooting stars popping all around), one night of night sweats, dizziness, shingles, nerves twitching in my hands (tingling & numbess sometimes),   blood work came back normal, hard time finding the right words when talking to people...(you know, like "oh what's that word I'm looking for?)
   So now I'm trying to tell myself I have something majorly wrong :((( I wish I could just calm down.  But when I typed in these symptoms it of course stated it could be a brain tumor.  Headache has been horrible...throbs when I cough, sneeze, bend over!!!!  Has this happened to anyone else?   Could stress really be the cause of all of these strange things happening to me?  I don't know if I should tell my doc to order an MRI or just wait and see what the next few months do.  

[idontknowwhatnametouse]

thank you for responding.  I'm trying to take naps during the day.  I am feeling better, and my lymph nodes have gone down.  My last antibiotic was today.  thank you :)

[Jumong]

Doesn't sound like brain cancer to me. Most of your symptoms can be attributed to lack of sleep and exhaustion. Try to get more sleep and find a way to relax a couple of hours during the day.