Your mother's symptoms are a bit alarming but entirely treatable so please don't worry. Is your mother a diabetic under medication? In that case, low sugar levels also called hypoglycaemia
can be one of the causes. If she is not a diabetic then low blood pressure, low haemoglobin
, fasting or onset of any viral illness can cause such symptoms. Dizziness
can also be due to a known history of cervical spondylosis
. Please get your mother's sugar levels, both Fasting and PP ie 2 hrs after food done at the earliest. Get her blood pressure checked up. Please ask for any new medication or any missed medicines. Ask her to use a thin, firm pillow during the night. If she has not slept well for a few days, that may be one of the causes. Consult a good physician in your locality at the earliest. Do not ignore the symptoms even though she may be alright now.
Take care and give my regards to our mother.