My 2 year old has many sleep issues since we shifted to a new flat 6 months back. She was such a wonderful sleeper no issues. She now has very vivid dreams and says she is afraid. Terrors at times as well. She will not go to bed unless I sit outside her door till she falls asleep. She wakes up every night usually around the same time crying for me. Do you know what's going on?

She's probably having trouble adjusting to a new environment. She might be young but children do notice changes to environment more than adults do. Getting used to a new place is stressful for adults, imagine how it feels for a little one. Perhaps you can sleep with her for the time being to reassure her that there is nothing to be afraid of. Alternatively, maybe decorate her room as close as possible to the old one so that she feels comfortable. I'm sure she will get used to the new place soon, just continue being patient and loving :)