Has anybody experianced anything like this?

i received an electric shock ( 4 surges, could not let go) holding a reyrolle plug in my right hand that was charging a fork lift truck from 240v mains, it's lead had been joined together with a junction box and this made contact with the concrete apron i was working on. i finally let go my heart was racing and i felt light headed as if it had popped and had two burns on my left thumb and finger where i had tried to pull it from the other hand. days later my memory seemed to be poor (recent events - on the tip of my tongue that kind a thing ).i thought this improved after a while but seems to have returned along with a pins and needles style pain and loss of strength in my right forarm and behind my right knee( painfull to bend down and little backward movement). also i have had difficulty hearing - the words and sound seem to get mixed up if more than one sound or voice. just had a ear test and been told that my left ears the best result he had seen in 30 years and my right was goodish too and tinnitus my affect people my age (47 male), but i still struggle with conversations as if my processor is not up to the job. accident happened 23 months ago does anybody know of any link ?