Asbestos?

I am remodeling an old farm house...Removing old plaster and lathe down to the studs and replacing with drywall. I do have some drywall experience but have never seen anything like this! I have hung and mudded the drywall in my kitchen and a single side of the tape has started showing, as well as the mudd, on every seam after it was painted. From the begining- I have applied 3 coats of mudd alowing 24 hrs curing time(Recommended by manufacturer) between each sanding and reapplying process. With the final sanding everything was smooth as a baby's "u know what" until it was introduced to paint. All dust was removed prior to priming. I then applied one coat of a primer recommended for new drywall and all seemed well. I then applied 2 coats of a good quality interior latex eggshell finish paint to the ceiling, as well as to the walls (used diff brand on walls) allowing 24hrs to cure in between coats. After the final coat of paint every seam in the drywall is showing. Almost like the mud is humped up. And only one side of the tape is showing through.. not both. Cant figure that one out! None of the screw holes are showing! Does anyone know what in the heck would cause this? Even with 2 diff good quality types of paint both ceiling and walls are showing! Please help!

Wall was discolored near tub (of course). I took off damaged wallboard, which turned out to be an old repair from the previous owner. The studs behind the wall board are slightly damaged with all but one still firm. They are discolored, darkened. However, one piece of 12" 2x4 insert (from an old repair, maybe?) next to the tub was black but dry and simply crumbled apart. One moderately damaged horizontal 2x4 runs behind the tub, with the damage disappearing the more it goes away from the tub edge. SO, my question is: Can I treat the moderately damaged (but still solid) 2x4's with bleach and vinegar rinse, replace the little 12" insert, and then re-board that section and most likely have everything be ok? I really don't want to rip out the tub surround and have at the whole section of wall... But... Any help?