Dealing with Lexapro Side Effects: Anyone Else?

I started lexapro around 5 days ago and so far I’ve been dealing with headaches, tiredness, slowness, hot flashes, rashes, waking up at night, no appetite, no motivation, and my anxiety seems worse.. I took lexapro when I was 15 and stopped at 16 but that was 4 years ago and I don’t remember rly having these side effects I actually remember it helping me Did anyone else deal with this? I hope it gets better im going to give it another few weeks- I’m thinking maybe it’s like a medication that purges everything out and then you get better but idk lol I could be wrong I’m just hoping it helps with my appetite bc I struggle with that quite a bit but yeah so far that’s my experience:”) anyone else deal with these side effects and did they get better?