Losing text when I add a checkbox?

I have a Word document with two text boxes. Essentially, there is one text box with another text box below it - which are for two different option ("a" & "b"). My intention is to have a check box to the left of each text box, allowing the user to check off whether the user is selecting "a" or "b."
 
When I convert it to Adobe with Form Wizard, everything looks good. However, when I try to insert a check box field to the left of one of the text boxes, it hides the top 5 lines of text on both text boxes (while the bottom 5 or 6 lines of text on each text box area still show up). I cannot figure out why it is doing this. The checkbox is very small and is to the left of (and outside of) the text box area.
 
Granted, once Form Wizard converts the file from Word to an Adobe form, it is no longer actually a text box as it was in Word - but I can't figure out why the insertion of a tiny check box field would make me lose 5 or more lines of fields to the right of the check box field. Even when adding a check box field to the left of just the top "text box" causes me to lose the first 5 lines of BOTH text box areas.
 
Any ideas?