Lately at the end of my work day ive been experiencing intense self doubt, low self worth, and major depression around 6-7pm

What makes it so weird is it just hits out of no where. Ive been at a really good place lately and during my days i don't even marginally feel depressed or anxious but rather ive been super motivated and energetic ever since getting my diet and work out regiment back

But for the past week its been like clockwork that the wave of negativity hita around that time and i cant help but sulk and think everyone hates me and is talking about.

Then i go to bed and wake up and those thoughts are gone and im back to being positive and optimistic

Anyone felt this or experienced this?

Edit: i take medication (lexapro and lorazapam as needed doxepin for sleep)