Very high levels of AST (more than 10 times normal) are usually due to acute hepatitis, sometimes due to a viral infection. With acute hepatitis, AST levels usually stay high for about 1-2 months but can take as long as 3-6 months to return to normal.
MFMA recommends the relative humidity level for a concrete slab for a non-glue-down maple floor system be 85% or lower and for glue down systems the concrete slab relative humidity level should be 75% or lower before installation.
Just get a hygrometer to your home, and you can read the humidity levels precisely. A hygrometer is a little device that is user-friendly and inexpensive. Ideally, the humidity level between 40% and 50% is good for living. But if the temperature outside changes constantly, perhaps, you need a humidifier or a dehumidifier to maintain the right levels. The humidity level is decided by many factors, like the area and climate you are living, the season it is on, and forth.