Sonj, a bit more time and you will get there. Remember, it is actually the static loading positions that cause the symptoms, movement is good. Discomfort and stiffness in the AM and after sitting or sustained flexion are usually the last to clear. The classic phrase is hurt does not mean harm. If you over do things you may make yourself a bit saw but that does not mean you have restrained your disc. It is normal to have some flair ups on the road to recovery, these are usually short lived. Why not try a 20 minute walk with your sack tonight and see how you feel? As my mother always used to say: "procrastination is the thief of time".