With the leg raise test, I think it goes something like this:
No pain when the most painful leg is raised = almost certainly not disc prolapse.
Pain when painful leg is raised = could well be disc prolapse, but not necessarily.
Pain in both legs = almost certainly prolapse.
I think relevant pain is when it starts with the leg somewhere between 30 & 80 degrees; but not sure if I've remembered that correctly. It wasn't fully diagnostic for me as I get pain in right leg at about 60 degrees but none at all in my "good" left leg.
My MRI shows bulging on the left side too so I do worry about developing pain in that leg as well.
With regard to toxic material from the disc nucleus, pavlov, I remember Sarah Key says that if it actually bursts out of the disc walls, it is reabsorbed into the body within a few weeks.
I've been doing her back block exercises again after a longish break. When I first did them last Autumn I was convinced I'd found the answer to the pain. Got up from the first session & could suddenly bend right down & touch my toes again - it felt like something had "let go" & my nerve was free again.
Sadly that didn't continue, & sometimes it seemed to irritate things further so I was stiffer than ever. At the moment, though, I do seem to be getting less hip pain since restarting - but could be coincidental.
I find the tennis ball self-massage brilliant for muscular aches in the shoulder area, but it's too painful for me in the lumbar region.
I've had weight gain, too - about 7lb in the last few months. BMI still okay but some of my clothes feel tight, so I know it's really not okay! And as an apple shape anyway, that 7lb is the difference between looking reasonably slim & looking 4 months pregnant. It's crept up on me so I'm sure it's just being less active & nibbling that bit more. Have given up all sweet stuff except fruit over the past few weeks but it's not making any bloody difference so far. Hardly drink anyway as it makes me flush (rosacea) so can't cut down on calories there. Just need to eat less / do more - easier said than done.