My blood pressure used to be non dipping 127-140 all day long. i take valsartan 80mg at bedtime and my blood pressure now is around 107/70 but i have anxiety all day long. i was recently diagnosed with sleep apnea, does valsartan cause anxiety?

Non-dipping is probably not the right term, likely you meant persistently. We use the term "non-dipping" for the condition in which blood pressure does not lower during sleep; most people are dipper, i.e. blood pressure is lower during sleep. Anxiety is listed as a side effect with unknown frequency of Valsartan. Sleep apnea can make blood pressure control more difficult.