Hi roxen,
IMHO the only problem could be messing up your stereo vision.
When the eyes are accomodating they also turn inwards following a 'learned ratio'.
When using a plus or a minus lens this ratio changes and your brain must relearn that new ratio to avoid double vision.
While most people easily adapt a few others don't. So you need to check out if the benefit of reducing your myopia is worth the possible trouble of adapting to that changed AC/C ratio.