Hello welcome to HCM
Ativan 2 mg. (or 20 ?) for chronic use then clonazepam
0.5 mg. for some days then again lorazapam, she has become dependent to these drugs. These have very high abuse potential, but as per my opinion apart from this problem your wife is also having problem of depression
in milder grade. As feeling weak, loss pf appetite, nausea
and other somatic symptoms may be a feature of mild depression.
So kindly visit a psychiatrist
and take opinion regarding quitting the lorazapam and for mild depression if its there.
Hope I cleared your doubt.