Lower current dose or push through?

Hi, I had really bad side effects on 5mg (first shot) 2 Sundays ago. I decided to skip a week to heal from the side effects and I am finally feeling back to normal. I was doing really well on 2.5mg and losing weight although the food noise suppression wasn’t as strong on weeks 3 and 4. During those 2 weeks, I was injecting the whole vial. I’m not sure what to do this coming Sunday (injection day). Lower dose or continue on 5mg? I want 5mg to work for me. I paid for and have the 5mg vials already. Maybe the next shot won’t be so bad. Or maybe it will be the same and I just can’t go through that again. The side effects had me completely down for 7 days and I had to miss work due to how bad it was. On one hand, I feel like I should listen to my body and lower the dose and on the other I want 5mg to work, specially since what I mentioned about the food noise subsiding a bit on 2.5mg. If I decided to lower the dose, here’s where I need help: I used to fill the syringe all the way up to “0.6 mL” while on 2.5mg. Using a 5mg vial, how much should I draw to get the same amount I was getting with a full vial of 2.5mg? Sorry, I’m not good at this stuff and I want to make sure I’m getting the correct amount. Thank you for any advice or input y’all may have.