Was this withdrawal or anxiety ?

I’ve been drinking a whole handle every 2 days of a 37.5% spirit. As of far it’s made me feel “normal” not crazily happy or anything and just leaves me high and dry when sober. It’s a never-ending cycle. Anyway as most of you are aware of withdrawal and have experienced it. I recently hit my head while asleep (yes I drank before the fall). But I have a bruise/lump/swelling on the lower ear. Like below the lobe. It’s gotten slightly better and subsiding in swelling since icing it.

Then I had a silly idea to overdose on ibuprofen/Tylenol while drunk because I couldn’t stand being a drunk and wanted to disappear . The one day that was shortly following both these incidents I drank too much supposedly way more than what I do in a daily basis and stopped eating and fell asleep continuously after each drink. Probably spaced out 3 hours. Usually I carefully space out my drinks 2x a day and half the daily intake. This was just reckless on my part. I don’t know why I did it. The following day I went to drink I had 0 appetite and was bringing up everything I was drinking though I failed to spread it the next day after drinking like that. I started shaking yesterday and now seeing hallucinations and hearing things that are not immediately there. Why is this? Is this purely the re-arranged drinking that one day or the combined effects of falling and then overdosing before that. Please enlighten me. Also I am actively seeking help through an alcohol support service so they said to cut down (unfortunately I haven’t listened to their advice whatsoever). I went there to get an alcohol assessment in the morning time following all of this, and as I wasn’t eating and drinking aimlessly I was nervous while giving blood so they gave me tea.i started shaking the minute after but this has never happened before so was this potentially withdrawal or just the fact I drank caffeine irregularly when I cautiously control when I do ?