To be constantly irritated and holding it down with DD1 20 months?

[QueenCee]

I don't know if I have PND or this is totally normal.
I also have a 4 month old DD.
DD1 is lovely and I do love her but she's a complete hand full. Melt downs over everything... Just being difficult over every little thing. Asks for milk then screams whilst I'm getting it because she wants it this instant. If I move her inside from the garden because it's raining, another melt down. If I change her nappy, she squirms about putting poo everywhere. We go out for a walk, she wants to get out of the pram now... Cue melt down. Walks for 5 mins, cue melt down as wants to be carried.
My DD2 is still EBF and due to her age, quite demanding and needy of me so I struggle with all these melt downs.
Is this normal behaviour from DD and do I just need to crack on and get on with it? Or would you feel this constant irritation and stress?
I'm worried I've got PND and all these other mums love this shit and I'm the odd one out!

Okay, I give up at getting that link to work, hope you can find it anyway.

It is normal behaviour. Ds2 is 2.3 and is just starting to come out of this stage. A couple of friends have tactfully suggested that I might want to go on AD's. The problem with me isn't depression, I'm just not good with toddlers. I was the same with ds1, I didn't realise how bad things had become until we were out of that phase.

That's me Bonnie! I'm so angry alot of the time DH thinks I'm nuts but I really think trying to juggle at 20 month and a 4 month and walk the dog every day, keep the house clean, get the kids out and about every day, food shopping blah blah blah is hard work and not a whole lot of fun.
I'm sometimes feel a shadow of my former self

Thanks pseudo... Will have a look on line