Ay sis, nakakaalala ko 'yan from my pregnancy days, ang panginginig with fever and achy legs is really concerning, lalo na kung hanggang ngayon may symptoms pa rin siya! Best to have her checked with her OB or doctor na kasi it could be something they need to monitor, whether it's pregnancy-related or something else entirely, mas peace of mind lang para sa inyo. A few of my mum friends had similar experiences and different causes pala, so definitely worth getting a proper check-up para malaman kung ano talaga at ma-address ng doctor. Hoping she feels better soon, mama!