In the past week or so I've been forgetting basic things like I will check my emails for example then almost immediately after not be sure if I've just checked them or not and repeat the process. Yesterday I was putting some snacks away in the cupboard that I had just bought and then I looked in the cupboard again a minute or two later and thought someone else must have bought them because I had forgotten I'd just put them away myself, before then realising it was me. A few colleagues have also pointed out in conversations lately I've said the wrong word, for example I was setting up my new phone and said 'screen remover' rather than 'sim remover'.
I also have had this near-constant weird feeling, it's hard to describe it exactly but I just feel weird and fuzzy almost compared to how I usually feel, like my memory is suddenly terrible and I'm not really absorbing any information.
I keep thinking the worst, that I must be getting early onset dementia or some kind of other serious disease, it's horrible. I'm 26 so this is obviously unlikely but I keep thinking about it.
I also hit my head a few months ago then fell to the ground, looking back I think I may have had a mild concussion but I let it go untreated at the time as I did not fall unconscious or have any pain, memory issues etc. at the time and was intoxicated.
I'm sick of feeling like this and just want to be back to my old self again. I'm not seeking medical advice, just want to know if anyone has experienced anything like this. 