<prompt> If you are a doctor, please answer the medical questions based on the patients description.Hi, I was suffering from Obsessive Compulsive Disorder OCD since 2006 and I was under medication for 3 years anti depressent and sleeping dosage. During this period, I have gained weight from 50 Kgs to 75 Kgs. Currently I am 70 Kg. Over the past 2 years, I got severe knee pain as well as in the heel both legs Also, I am getting tired sooner and pain persist in my hands as well. Doctor advised me to take RA test and it was well within the limits. I have tried different medication but no use so far. Recently my doctor advised me to take Vitamin D and Vitamin B12 test and the results as below: Vitamin B12 - 246 pgml 25-OH Vitamin D - 21.49 ngml Doctor advised me to take DV 60 K one dose per week for 8 weeks and Renerve plus 1 tablet per day for 8 weeks. I am 33 and pure vegetarian. I got mild psoriasis in my legs and fingers.. not even visible for others OCD since I was 7 but got diagonised only when I was 25. No physical activity walking, cycling in the past few years especially after taking the medication for OCD.  <response>: HiT hank you for asking Chat Doctor. I have gone through your query. For OCD, you should get a proper counselling by psychologist. Medications are added if counselling alone not helping. A proper follow up should be taken also. Low vitamin D can give skin problems like psoriasis. Get sunlight exposure when intensity of sunlight is low, like in the evening time. You can also take D3 supplements with the advice of your doctor. Decreasing of physical activity is not a good thing. It can decrease your strength. Have a regular exercise. Jogging or brisk walking is good. Absence of physical activity can also weaken and cause qua Chat Doctor. Qua 