No it wasn't constant. The progression was for about a year until I realized something was very wrong. It started with low blood pressure, heart palpitations, weak and dizzy spells and raynauds type symptoms in the cold along with the numb tingling. It started around Oct 2013. It wasn't bad as I was still functioning normally and then Sept 2014 it rapidly attacked and turned into terrible shooting nerve pain and debilitation for 4 months. I couldn't even drive. I slowly became able to function again but I am not myself and have limitations, but hopeful that I will recover more.