New to Gym - Joint Pain

[Sandycheeks]

I am 38, 6'2" and 104kgs.
Started at the gym about 2 weeks ago and usually go every other day.
I start off with 20mins treadmill = 10 mins walk and 10 mins run at 6mph.
I then move on to arms /shoulders etc...

Mon = 20 mins cardio followed by arms and shoulders.
Tues = off
Wed = 20 mins cardio followed by back/chest.
Thur = off
Fri = 40mins Swimming.
Sat = 20 mins cardio followed by Legs.

I haven't been particularly active for a long time and have been flying a desk at work for the last 8 years also and feel I may have jumped in a bit too quick.
I used to go to the gym about 18 years ago but stopped going as I was beginning to see the benefits.

I am now getting a lot of joint pain especially in the hips and wondered what the best thing is to take.

I don't do veggies, apart from carrots and nips, and green beans although not nearly enough but I can't make myself eat them as I am repulsed by most veg and also I have IBS so not really supposed to eat a lot of fruit or veg on medical grounds.
I also recently had my thyroid nuked and am now taking meds to increase thyroid function as it's a little low atm which doesn't sound too bad but it makes me tired and causes fatigue.

I intend to start the stronglifts but kind of wanted to spend a couple of weeks getting used to it again and using the resistance machines to start off with.

 

[Sandycheeks]

The best thing to take is a slower approach to hitting the gym (for the next fortnight or so).

Your hips hurt because you probably have some rather interesting biomechanical dysfunction around your ankles, hips and lower back (i.e. your ankles are not sufficiently flexible, your thigh muscles are too tight in the wrong places, your glute med is pitiful and your core doesn't function). This will require stretching, rolling and strengthening, so go and see:

a) a sports physio if it persists once you slow your exercise rate;
b) a strength and conditioning coach to actually sort out your lifting and remediate your issues.

Taking "something" won't actually help you, as you won't even treat the symptoms sufficiently. Fix the cause: get strong, get stable, and reap the benefits in real life. And no, resistance machines are not a good idea because they trick you into thinking you are stronger/more stable than you actually are, as they do most of the stabilisation stuff. Ditch the machines, find some free weights and get moving.

And I thought IBS is compounded by heavy sulfur-bearing veg? Oh, well - you learn something new every day!

The veg thing is various types of soluble/insoluble fibre etc...
I have been keeping a food diary for the past 3 weeks now as my doctor wants to try to get to the bottom of my IBS - I've only been suffering for 20 years.

The resistance machines weren't meant as a replacement to free weights, just a starting point to get the muscles a little used to working again.
I WILL be ditching them, probably next time I go.

For now I'm going to have a couple of days off and try again, going to leave out the squats for now and do bench press instead as I don't want to load up my hips with any extra weight for now.

When I suggested taking something I was implying something like cod liver oil or glucosamine or ???