DD, age 9, overheats very easily as she doesnt appear to be able to regulate her body temperature. Winter is OK as she just wears vest top and shorts! In summer she passes out and/or vomits with heat stroke when all her peers are absolutely fine. It is quite scary and limits what she can do in summer and our choice of holidays etc.
I have finally been to GP again and had bloods done which didn't show much just lymphocytes slightly high and iron/vit D slightly low (surprising as on supplements for both the later). Basic thyroid tested and was fine. Aside from this her health is OK but it really is restricting her life during the summer and she wants to join in life and do sports.
Any experience of this or suggestions of tests I can ask for? All females on my side of family including me have auto immune conditions but none of us have overheated and she has no other issues aside from above.
Thank you.