spinal/lowback injury, pain

Hello,

I am 35 yr old male. More than 5 yrs back after a fall my lower back was affected and it started as severe low back pain which kept on getting worse with time.I have had this pain and discomfort 24/7 all these years. Pain is least when my body is erect and worst when sitting. With time it has now become so bad I cannot sit for more than few minutes as it builds strange congestion and pain not only in my back but whole portion inside including region inside abdomen around solar plexus, so to get rid of this discomfort I have to stand and get in erect position. But even while standing its not entirely comfortable, my posture is not very much erect, pressure from inside makes me bend a little to left and front. I have been doing yogic exercises and try to walk as much as I can everyday. Since the injury two more problems that followed were firstly, abnormal increase in frequency of urination and its very difficult to hold if I have to go and this frequency is variable, in worst cases it has been to every hour. Secondly, physical touch/contact with younger females for example if sitting next to me( touching me) would made me ejaculate after a while. I am just so embarrassed to even talk about that but it cannot be helped. Also I will like to stress on fact that none of these above problems were present before injury.

I am writing here impressions of MRI report of Lumbar Spine

Diffuse disc bulge with left paracentral propensity at L3-L4 level causing mild thecal sac indention, mild bilateral neural foraminal narrowing(L>R)

Diffuse disc bulge at L5-S1 level causing mild thecal sac indentation mild bilateral neural foraminal narrowing.

I have been taking calcarea phos 6x for a while now and it does help slightly.

Kindly advice me.
Thanks and regards.