Thank you for your query.
Kindly correct me if I have not understood the issues which are:
from Sunday - I presume it is now 8 days.
2. Dairrhoea last Monday - 7 days back
3. You consulted the doctor on Monday, 7 days back
4. Leg pains - you mention that reflexes are unresponsive. Is he able to move his legs against gravity?
5. You have not provided the values of the blood and platelet counts for our comments
In case the platelet count is low then they should be repeated and a test for Dengue
In case the child is unable to move his legs then he need to taken to the ER at the earliest for further management.
I hope I have answered your query to your satisfaction. Please feel free to revert back if you require and clarification or would like to share more information.
Wishing your son all the best....