Firstly, are you eating a balanced and healthy diet and are you taking any prescribed or non prescribed drugs? Sometimes you do not have a period if there is malnutrition, stress, etc.
Secondly, I'm assuming you have taken pregnancy tests which are negative? You need a blood test to check your HcG and iron levels.
Thirdly, you should get your doctor to refer you for a scan as you may have poly-cystic ovaries or maybe even an ectopic pregnancy (although this will normally show up as pregnant on a urine test).
You must seek medical advice as there could be a number of factors causing your cycle to change.
Depends on the intensity of the snow - it could be almost nothing, or it could be several inches.
Someone who know almost everything there is to know about almost nothing.
Yes, almost half of them have additive inverses which are negative.
Almost nothing
almost nothing
Almost nothing.
Almost nothing
almost nothing
Yes, it can. But it's almost impossible
Almost always negative.
almost always.
There can be false-negative test for almost any disease including Valley fever.