Can taking loads of amphetamine (speed) years ago hav caused my primary hypogonadism,left wit ed, numb scrotum,penis no sensitivity, can i be helped ?

Vascular or nerve: injury is most likely responsible for the numbness in the scrotum and penis and ED. Chronic hypertension and diabetes both cause blood vessel injury and nerve numbness. Spinal injury can also cause numbness. Marihuana and heroin are known to cause hypogonadism. No reports on speed, other than it's affect on blood pressure and acutely, strokes. You need a full eval before treatment suggestions.