I thought I might share my experience with your because I was on a low dose of valium for a very short time. This is my "valium" story.
I took valium for about 3 weeks last April (mostly 5 mgs a day, sometimes 10) and quit c/t and experienced acute withdrawal. I reinstated on .5 mg K, made a .25 mg cut and felt horrendous. So I crossed over to valium (10 mgs), held for a few days until I felt back to my old self and started tapering. I cut the first 5mg in about 2 weeks without much difficulty, and tapered the other 5 mgs by going down 1 mg a week, and then when I was down to 1mg, I cut by 1/2 mg, held the 1/2 mg for a week and then jumped off. I felt fine throughout my taper. My sleep was broken and I had some earache/headache, dry eyes, but that's about it.
It's only after I stopped that I started having bad withdrawal symptoms. The worst was insomnia, but I had other symptoms mostly head symptoms and some anxiety/adrenaline rushes. All of my symptoms have improved significantly, and now at 4 months off, I'm almost back to myself. If it weren't for the fact that I still wake up at night after the first 4 or 5 hours of sleep, I would say I'm totally fine.
If I were to do it again, I would say I might have held that last cut a little longer. The insomnia was really, really bad the first 6 to 8 weeks. I don't know if it would have made any difference. In retrospect, I'm really glad I did a relatively fast taper because now I feel that I'm really healing with time away from valium.
The key to tapering is to listen to your body and go at a rate that you feel comfortable with. Every one is different. There is a lot of science and success behind a valium taper. It has a long half life and very little, if any, inter dose withdrawal.
Didi