Strange noises from everywhere

Firstly my car has decided that a lot of the time it doesn't like been driven in second gear and as you accelerate and get to about 2.5k the car starts juddering and shaking and it's like hitting a brick wall so you have to ease off or put it into third. When I first got the car it used to have a slight judder at 2.5k but nothing like this this is quite violent. It mainly seems to happen from cold it was really bad driving home from work last night and then I was parked up for a couple of hours got back and it did it again. However this morning all was fine yesterday it did rain very hard and the other morning when it happened it had been raining hard.

Secondly as I started to move off this morning there was a loud banging noise from the front of the car just as I moved off.

Thirdly and finally as I did a 3 point turn in my road straight from pulling away the steering seemed to be creaking loudly although after the 3 point turn it soon disapeared.

anything to be really worried about do you think?