Skin reaction problems

For context, I started partying in high school, but had to stop due to having weird ass annoying reactions, that no one else seemed to experience nor understand. I’ve documented how each time went, and was wondering if anyone had the same problem, could tell me what it is or give me a solution for it.

1st Party:

Drank: Yeager; Vodka; Label 5; Gin; Beer

Mixers: Coca zero; Crazy tiger

Smoked: Cigarettes; Weed; Vape

Status: Very drunk/High

Reaction: Heavy skin flushing on body, especially right leg, left lower leg, arms and hands, feet. Light swelling, itchiness and warmth. Took around a week to fully go away.

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2nd Party (a week after the last):

Drank: Vodka; Gin; some beer

Mixers: Schweppes; Coca Cola

Status: Drunk

Smoked: A few drags of a cigarette

Reaction: Mild flushing, more spread globally on the body, but still more noticeable on the right upper leg and left lower leg. Took around 3 days to fully go away.

———

3rd Party (more than a month later):

Drank: Gin; some beer; a shit ton of water

Smoked: 2 drags of some very low quality weed (2 other friends felt sick after)

Status: Somewhat drunk

Reaction: Heavy skin flushing all over the body in patches. Swelling, itchiness and warmth. Trembling & Jaw shaking. Closed eyes visuals. Dizziness. Took a week to fully go away.

———-

4th Party alone (5 days later):

Drank: Vodka

Mixers: Orange juice

Status: Somewhat drunk

Reaction: Very light skin flushing. Went away in a day

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5th Party alone (a month later):

Drank: THC flower (>0,3THC) tea

Status: Sober

Reaction: no reaction.

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6th Party (a few days later):

Drank: Few sips of vodka mixed with syrup

Smoked: Cigarettes; Vapes

Status: Sober

Reaction: no reaction.

———-

7th Party (almost two weeks later):

Drank: a Vody can

Status: Very drunk

Reaction: Mild flushing, more spread globally on the body, but still more noticeable on the right upper leg and left lower leg. Took around 2 days to fully go away.

Medication: Cetirizine 10mg

———-

8th party (a week later):

Drank: A monster energy drink (green); half a beer

Smoked: A cigarette

Status: Sober

Reaction: none

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I never had food allergies. I tolerate beer, wine and cigs seemingly well too.