TIFU by drinking vape liquid

So I've struggled with substance abuse for quite a while, always searching for a high to escape reality. Well 4 months ago I developed a condition called Hallucinogenic Persisting Perception Disorder (HPPD) which can cause a large list of mental disorders and also leads to physcedelic visuals permanently, uncurable.

Well the combination of anxiety, depression and having to accustom to a lifelong state of visual tripping only increased my desire to escape reality. I looked for solace in substances, using more but quickly found most drugs only worsened my condition.

Being suicidal after 3 days of binging speed followed 2 days later by a near death overdose with opiods made me realise something needed to change. I completed 2 weeks of sobriety motivated by the idea that it was this or death and I felt my life begin to improve.

But this fear wore off day by day and I relapsed. The following day my condition was far worse with imaginary creatures crawling everywhere, constant voices and smells that did not exist, and of course my sanity slowly degrading. By the end of the day as I struggled to complete some work, I became convinced the reason for the onset of my craziness was infact aliens beaming evil propaganda into my brain.

The borderline schizophrenia reminded me of the consequences of taking drugs so I vowed not to take any hallucinogens again. But a few days later as I tidied I discovered some vape pods for which the battery had broken. Bored and clinging to the mental connection I had created between substances and positive emotions, I decided to try to use the liquid orally.

I absorbed a small amount into a piece of cotton wool which i put up in my gum. For anyone who's used snus it was similar but with a more intense pain, instead of a burning feeling in my gums they felt freezing and my cheeks went numb for a while after.

The nicotine rush was weak however my heart rate blasted from resting to 135 and I began to sweat profusely before my hands started shaking uncontrollably for about 10 minutes. This wasn't enough to deter me from trying to get a stronger buzz and I switched to just swallowing it and used about 2 pods of liquid.

I'm wondering what damage I could have caused and how worried I need to be. I'm experiencing mild pangs of pain but I have very high anxiety so these could well be placebo.

TL;DR: I have a history of substance abuse and decided to drink vape liquid while attempting to go sober. What damage could I have done?