sideeffects fo going off anti d

I have been off my anti d meds now for 2 weeks, the last 5 days have been hard.  I did not understand why i was feeling light headed and nausious.  I have to retype half of the word i write because they just don't go down on paper right the first time and my ability to spell and compose has gone downhill faster than a N.E. skier. Excamble of uncorrected typig. that says: Examble of uncorredcted s typing. Let's try again, real slow this time: Example of uncoreected typing.  Once more: REAL slow.  Example of uncorrected typing.  Good, i can do it if i take my time. lol.  Wow, it is an effort.  So. . . i feel sick to my stomach in pouts of 20 min several times a day.  I feel like i have had a 3 martini lunch, especially when i turn my head quickly.  I looked these things up on the internet (my source because i don't like to call my dr and bother her) and found that going off anti d can have side effects, especially since i have been on them for almost 15 years.  Actu