Clay is used to take a mold of a good tab. This good tab mold is fit to the broken tab, then filled with ABS cement. The tab is rough, and not exactly perfect. However, it is a full plastic repair of the missing section, and a great improvement over what was there.
The real reason we are feeling so run down is lack of nutrients in our soils. Even eating exceptionally well, we will still run short. Its a sad fact, but true. To cover those daily needs the best nutritionals out there can be found at http://healthforthesoul.youngevity.com/ My recommendation is the healthy start pack for your basics.
If you feel giddy, you feel unsteady and think that you are about to fall over, usually because you are not well. He felt giddy and light-headed. American English: giddy