That could be contributing to your problem right there. The caclium your plants are able to absorb is trivial, and you are probably doing more harm than good by messing your pH up. If it were my grow, I would immediately stop adding the lime to your water. Get yourself some cal-mag and start using that. Too much Calcium in your medium will lock out other nutrients as well. You may want to consider flushing with nothing more than pH'd r/o water. I think you caught this in time but I'm concerned if you don't act quickly you will start to see these problems only get worse in the coming days. Be patient and don't try to do too much at once. Best of luck my friend and don't hesitate to hit me up if you need anymore help.