Side effect hurdle

Started zepbound 5 weeks ago. First 4 weeks at 2.5 were so smooth, barely any side effects and lost 8 lbs. Took my first dose of 5 mg last week and felt nauseated and exhausted the day after the shot but survived and felt totally fine the remaining days of the week. I took my second 5 mg shot this morning and 6 hours later the nausea and brain fog and headache have hit me like a truck. Please tell me I won't feel this bad as my body adjusts. I have 2 little kids and can't live out of commission 1 day per week. Please tell me I just need to get over this hurdle for a few more weeks!