It does seem to vary with me quite significantly - but bread seems to be the worse offender for getting me high and keeping me there for the best part of a week no matter what I do afterwards! Cake seems less detrimental and I'm usually back to normal quite quickly... maybe Marie Antoinette knew something we didn't! Bananas are fine for me as long as it's on a long walk. I'm not had rice or pasta for months, so not aware of what that may do at the moment.
I'm aware I'm walking much more as I'm off work until the end of the month, and there is less food temptation of any variety at home, so that may also be contributing to my current very even keel,