Help!
I know I'm panicking and over-reacting probably but really need some advice. Apologies if this is a bit long.
DS1 is my 3rd child. I ebf'ed both my DDs and, despite a rough start with DD1 as she wouldn't latch at all and lots of faffing with expressing and cup feeding til she did, I had no problems at all with DD2 and bf for a year.
I'm feeling incredibly low about the problems we're having with DS1. He was born v early Saturday morning. He went on the breast really well straight away (skin to skin) and was super keen, sucked for absolutely ages. It didn't hurt at the time so I just let him do it and he ended up at the breast for nearly an hour (half hour each side).
However, I soon realised during Saturday that my nipples were incredibly sore, very very sore even in between feeds. I assumed the long feed maybe hurt them and they'd need to heal so kept going through the pain in the hope they'd get better. He seemed to go on the breast well and suck well in a rhythm with swallowing (tho obviously just colostrum). The mw came yesterday and said he has a v mild tongue tie (but so mild "they wouldn't do anything about it anyway" and he can certainly stick his tongue right out of his mouth so I know it's not a severe tongue tie). She watched me latch him on, though he had recently fed and wasn't that interested plus my milk wasn't yet in. She thinks the latch is very bad, he's only taking the nipple. She tried to demonstrate but trust me, I went through all this with DD1 and got all kinds of varying advice.
I know I should take him off if it hurts but then every re-latch hurts again. It's agony, really really painful and pinchy. I'm using Lansinoh but it's not enough.
My milk has come in and I'm in agony from that (like someone's tried to insert shoeboxes under my small breasts). I tried to feed him but it was so sore, so I've tried nipple shields in desperation (I know, I know) which did help a bit (still sore but bearable) but he doesn't seem to be able to get any milk out with the shield on.
I'm at a loss and very upset about this now. I'm in agony each time I try, I really don't think I can keep going through the pain. As a last resort, I've just expressed (which also hurt my nipples) and bottle fed him. I can't envisage having time and peace & quiet for all the expressing/sterlising or cup feeding lthat I did with DD1 when I have 2 other small DC.... I don't know what to do at all.
I can ask the mw but in my experience they all give varying (sometimes contradictory advice). She tried to show me a latch and basically jabbed him in the back of the neck to get him on and then it didn't even work anyway. The next bf'ing clinic is Wednesday and I can't see how I'm going to manage til then.
I'm having to go upstairs to feed him as I don't want my other children worried by seeing me crying in pain from feeding
Any ideas? I know what the latch should be like but can't get it to work. I have to say DD2 never really had a "proper" looking latch but it wasn't sore and it worked for us adn we fed happily for a year. I'm so low as I feel we're on a slippery slope now which makes me so sad - I want to feed him like I did my other DC 
Thanks for listening.