Noticing one's subtle bodily sensations tripping
I am a 5 year vegan, 7 year vegetarian...and recently have been about a 80% raw foodist. :D
you post caught my attention and rung a bell with my own progress. at some point, i became more sensitive to the regularly-more-subtle sensations of my body....my daily 'body high' if you will. when tripping, this is obviously intensified, and through the years of regular tripping, i became largely inspired to 'clean up' my diet. Not only for the typical 'lets be healthy' reasons, but also, since i was afterall i was a psychedelic connoisseur. I was largely drawn towards clean living to propel my consciousness into higher states. I noticed the cleaner i went into a trip, the higher i could climb.
not to be a stickler with good eating, but the list you gave of what you ate...was pretty bad. lol

sorry. while you are avoiding fast food, you are lacking in 'living foods'. and from my exp of dietary evolution over the past 7 years..i must say, the only change that really affects your total health is eating living foods. even if you're not a raw foodist, eat more organic fruits!!
acidity/alkalinity in foods is important, as mentioned above. and this is not the pH of the food itself, but is rather the measure of how the blood assimilate the minerals within the foods. fruits are generally (or maybe all) alkaline producing because of their mineral content...sulphur rich foods are acid forming i know. (have to review my books for a better list)
aside from acidity/alkalinity...food combination is crucial for the best high

don't mix grains with fruits, that will ferment inside of your intestines, creating alcohol...getting you drunk from the inside out, not to mention producing gastro-intestinal discomfort. ideally you want fruits before grains in your daily consumptions...because the fruit digests quicker, and it will 'catch up' to any grains you have in you intestines. Putrefaction is the other main no-no to avoid with food combining, give a good read over some 'food combining' articles on google or something (i'm not a frickin health counselor, just a master of clean tripping

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when i went into raw food i noticed an absolute difference in my daily mindset, as well as a totally different consciousness 'level'. this doesn't happen overnight, but rather takes a few days to a week of eating only raw, living foods. go figure, i you can't go eat a banana and instantly feel transformed. when you're not acidic, processed, fried foods and when you're caffeine-free (trust me i was a fucking caffeine addict) your body will produce way way way less mucous. our high-mucous production is our body's futile attempt at protecting its tissue from acidity, making a wall of mucous which goes all through your digestive tract. so when you're not eating over-acidic crap your body will slowly adjust it's mucous production, which leaves you not only with a 'cleaner' body high, but also it literally 'opens up' the head.
The opening of the head is the most consciousness-increasing angle of raw-foodism that i can make note of. when you breath eating raw, you can feel the breathe go into your sinus cavities and all through your head. so what? you ask....well, for me, this 'air swirling through the head' is proportionate with my daily sense of awareness. the first time i emptied the mucous from my head, on a 3-day raw food fast, i felt like i was on mescaline. It felt like my head was a sphere, and i could make out all the stimulus all around it. I was walking through whole foods and could hear every person around me perfectly, as well as feel all the air circling around my head.
sorry for the lengthiness. but figured i'd chime in with 2 cents regarding the spectrum of bodily-sensations with regards to dietary-correlation.
if you're interested in testing this, try a juice fast for a day or two before a trip, and tell me if you can or cannot feel the difference in your body-load. (and a juice fast doesn't mean go buy v8 and purina farms OJ. <pasteurized bullshit. get a juicer and juice raw vegetables and melons and stuff. watermelon juice is my best friend)
*not intended as a preaching to make you all raw foodists. just decreeing passionately my area of expertise*