She just needs to get her sodium, calcium and potassium levels in controll...one of those is off and that's why she's cramping. When you take clen, you have less leeway for this.
Clen alone is fine, t-3 + clen equals stronger fat burning. And I don't care what anyone says, but guarantee someone will say it. Do not worry about shutting your thyroid down or rather her thyroid down by doing a run of t-3. This is perhaps the most exaggerated claim of all...even more so then liver damage claims.
BTW, 2wks on, 2wks off is not the most efficient IMO. Receptors do not get flooded in 2wks and then become non responsive...of course many will claim they do, but most of the time they are talking out of there ass and just like saying words like "receptor" lol!
Best way to run clen. Start at a low dose and ramp up slowly over the entire course of the diet...bumping it up 20mcg every 2-3 wks until you reach max desired dose.
Last thing, for those that argue this method, many will say that after 2wks they can't feel the clen...well, that's fine....feeling it means nothing...you may very well adapt to the slight stimulant effect, but that's OK, we don't' care about that, only the fat burning...and the 2 are not one in the same when clen is concerned.