If you are not a kidney
stone patient,then there is no way you can feel stones.
As far as irritation in urine is concerned,it could be due to urine tract infection or PROSTATITIS
Although injection ARACHITOL
is oil based but it is not painful.
You must take VIT D sachets or injection ARACHITOL as advised.
Although there is no problem in taking cod liver oil capsules but it would be insufficient to correct your VIT D deficiency.
You may have to take VIT D even beyond 8 weeks as it takes many months to correct VIT D deficiency and even after that, VIT D sachet is taken once a month for lifelong.
Since you got bariatric surgery
done,you have to take many other vitamins and minerals
,besides VIT D.