Congrats mama! Honestly, a few of us CS moms got pregnant again within 2-3 years din, and iba-iba talaga ang experience, some said ang scar tissue ay hindi sore pero ang ligament pain was intense, iba naman okay lang ang tahi pero naubusan ng energy mabilis kasi may toddler pa. The nausea at food pickiness mo, that's pretty normal sa second pregnancy talaga, parang mas intense minsan, kaya good call na mag-check up na this Saturday para ma-clear mo agad with your OB kung normal lang or may concerns sila with your previous CS scar. Wala kaming magical tips dito mama, pero try eating small frequent meals and staying hydrated, it helped some of my mom friends. Fingers crossed for you!