I have a patient who is experiencing liver and kidney yin deficiency signs, dry skin, dry mouth and throat, lightheadedness, night sweats, sensation of heat rushing up. Pulse is thready and slt. rapid. I think that Liu wei di huang wan would be a good formula for her, however she has hypothyroidism which is under control with thyroid medication. Would that be counterproductive to prescribe that formula, because hypothyroidism is caused by kidney YANG deficiency?