So sorry you're feeling so poorly, Z.
I know 2 or 3 people at work who've had similar symptoms to you, but in their case it appeared to be a 24 hour viral illness with fluey symptoms.
This BBC Health website gives more information on the two types of meningitis ....
CLICK HERE.
If you're really worried, then PLEASE call NHS 24 to get advice from them or ask to be seen by a doctor (08454 24 24 24) or go along to your nearest A&E Department or Minor Illness/Injury Unit to be checked out.
Hope you feel better soon.
Kaz
x