Wow, this the 3rd time in one week that I have posted in AIBU - i'm not normally this grouchy and irate I promise! 
Some background: DS is 11 weeks old, and I have been on maternity leave from my work since xmas. My role has gradually expanded, so in my absence has been spilt and my work has taken 2 people on, one full time and one part time, with the aim being that when i return later on this year I will resume the part-time role. I have a 'big boss' and my line manager, both of whom I get on well with normally. A month before I left, I inducted both of my replacements, and said that if they needed to ask anything once i'd left and before baby was born, or if there was anything urgent, then they could contact me. Both have done a couple of times to ask questions on a couple of things, and this I am fine with.
However, in the last month or so, my line manager has been contacting me more and more to query things/ask questions. I feel confident that I handed all the necessary info onto her and my replacements, and we have a fairly easy online filing system to deal with, so most documents could be located very easily should the need arise and they're not sure where they are.
2 weeks ago she text me on a Friday asking if my DP was around to speak to (his company provides a service to our company), as something had gone tits up. She must've known he wasn't in work as she would've contacted his company first. I told her that no, he wasn't around, as he was on a stag weekend and not easily contactable. I probably could've contacted him, but i didn't want to stress him out and ruin his weekend, as he'd be worrying about what had gone wrong, and wouldn't be able to fix it anyway as he wasn't in work. She wasn't best pleased at this, but left it. So after this, I text later to see if they got the problem sorted, and she text back a slightly arsey text saying that she'd contacted our old suppliers, and THEY'D managed to sort the problem out, leaving me feeling guilty when it wasn't my fault, or actually anything to do with me- it's DPs account and i'm off work!
Also, the last week i've been getting texts and phone calls asking where certain documents are- no "hello how are you?", just very straight to the point "where is X". I got a call the other day asking where something was, that it wasn't somewhere it should be, and I said, "well it was before I left, if it's not there now I don't know where it is". I got asked if i'd mind logging onto to the system from home and searching for it. i said I was out and about, and that i'd try later on or the next day. Didn't have time for most of the following day to look as busy with DS, and then get ANOTHER text asking if i'd looked for it yet. So frantically scrabble around and log on, and document isn't there (surprise surprise), so I state yet again, that if it's not there then someone must have moved it and I don't know where it is.
Today I get yet another text from line manager asking about something, and it's again something they should have details of, and something that I handed over to someone else at the time. Also, what they're asking took place MONTHS ago, so I can't remember exact details off top of my head- but i'm expected to apparently! Have text back details that they want, but starting to feel a bit stressed out and harrassed by all of this. 
I know to expect some reasonable contact with work, but AIBU to expect that work don't contact me this much, and not unless urgent? I actually like my company and the people I work with (line manager included!), but starting to get the hump a bit. Also making me feel that I did a crap job handing over, which I don't think is the case as was very thorough!
Wow that was long!