"pick up me" is incorrect. Pronouns must go between the parts of separable phrasal verbs. - I will pick up John at the airport. - I will pick John up at the airport. - I will pick him up at the airport. - I will pick up him at the airport. << wrong More information here: https://english.stackexchange.com/questions/250306/why-cant-you-place-pronouns-after-a-phrasal-verb

"Fetch" is almost an obsolete word. "Get" is a better choice. More information here: https://www.italki.com/discussion/215055 [excerpt] So what about 'fetch'? I don't think that learners of English need to worry about 'fetch'. It's actually a very low-frequency word in modern English and - here's the key thing - you never need to use the word 'fetch' - unless you're training your dog to run and bring back sticks, that is.

"pick up me" is incorrect. Pronouns must go between the parts of separable phrasal verbs. - I will pick up John at the airport. - I will pick John up at the airport. - I will pick him up at the airport. - I will pick up him at the airport. << wrong More information here: https://english.stackexchange.com/questions/250306/why-cant-you-place-pronouns-after-a-phrasal-verb

"Fetch" implies going from some place and returning back with somebody, "pick up" implies driving "There are some issues that I must deal with/attend to/ handle tomorrow" is a better way to begin, I think. If you need "suddenly", you may say "Suddenly some issues that I must deal with tomorrow arose..."