No withdrawal symptoms?

Hi. I take 20mg daily, and have been taking them for around six years. The thing is, is that I am unstable and I’ve stopped taking my lexapro cold turkey an uncountable amount of times and experienced absolutely 0 withdrawal symptoms. I have recently discovered that this does not seem to be normal? I did not know brain zaps were real I thought it was a figure of speech for being fatigued??? There’s been times when i stopped taking my lexapro only for a few days and other times where I’ve gone months without it. Again all cold turkey. And again I’ve genuinely never experienced a negative symptom from doing that? Does anyone else have an experience like this? I’ve tried googling around but it only gives me articles telling me not to stop lexapro cold turkey(I’m doing great at taking it rn dw). It’s making me worry I’ve been paying for lexapro for six years without it actually doing anything😭