Had a hectic day today and didn't manage to eat or drink anything until late this evening, and as this has happened before I thought nothing of it - but this time, shortly after eating I felt an overwhelming exhaustion and sort of passed out asleep for at least an hour. Just before I did I took my temp and it was 33.4 celcius! It was the same on waking, and now it has gone up to 35.4. Normally it is 35.8 - 36.4. I have never had this experience before, my temp has gotten to 34 at the lowest. I saw another thread where this happened to someone and one possibility was myxoedema coma - but my thyroid results are normal and when I looked at this page: patient.info/doctor/myxoede... it seemed to be only 60 yr olds and above in the winter who get it, not 21 yr olds in the summer!! So I am not sure what to think...is this really dangerous or is it just a brief lapse of energy (that I will be super careful to avoid in future!)? I do know that my adrenals are flat, so maybe that is all it is? Thanks, any light on this would be a huge relief.