The meningitis vaccine is not given orally (or I don't think there is an oral version) so the compounds listed above are not going to trigger any reactions to them in the gut. There is nothing to be concerned with on that front whatsoever.
The issue is simply that just like a regular old flu, cold, or stomach bug 'activates' the immune system, so does a vaccine. They are designed to do so in order to stimulate long term memory cells.
Most people flare a little to a lot after a bug. The same can be expected for some vaccines depending upon specificity and the meningitis vaccine is more of a broad vaccine. My guess is it will pass in a week or so just like a regular bug. The immune system is extra active or 'stimulated' right now and that is most likely causing the current issue. It's probably also equally possible it is pure coincidence.
Post Edited (Canada Mark) : 8/14/2016 12:36:29 PM (GMT-6)