welcome to HealthcareMagic
Your doctor did the right thing when he advised you to just keep a watch on urine analysis because most of the benign cyst
settle on their own and only few require treatment in any form.As for the beiberi it is a disease which comes on as a effect of deficiency of Vitamin B1
and can be easily treated with vitamin supplements if diagnosed early.The vitamin capsules or tablets are not very costly so you can buy it.I do not know much about raw apple cider vinegar but cranberry juice is good for urinary tract
problems and even coconut juice.Presently you can get examined in a government run/charitable hospital to find out if you really have beriberi or not and get a simple multivitamin
prescribed like Neurobion/Becosules/etc.