DS 3 (almost 4) is our middle child, always been a little boisterous and loud but he also has a very sweet, kind nature so we put the other side down to normal 3 year old behaviour.
These past 6 weeks his behaviour has got completely out of control and I'm on the verge of tears daily. I adore him with every part of my being but find myself dreading going to bed as I know the next Morning it starts all over again. It's a lot to put down into words but I've listed below some examples of his behaviour, I just don't know where to turn.. GP appointment? Health visitors? Please, please help a broken Mama 
- Potty trained for a Year, this last fortnight has started having 4/5 accidents a day (1&2's).
- Screeches and yells out for me continuously if I leave the room, no exaggeration when I say screeches and cries, will start pounding on the door even if I pop to the toilet.
- Refusal to do anything himself, huge hysterical meltdown if we ask him to brush teeth / put shoes on.
- Lashing out and hitting siblings and dogs.
- Throwing food and plates at mealtimes.
- Scared of any kind of dark, needs big light on in any room instead of soft lamps.
- Scared of rain, wind, cold weather.
- Does not want DH to help him with anything, including things like bedtime story. Will scream at the top of his voice "Mummy do it!" Over and over and over again.