Vitamins Help

[nikki2975]

I'm really struggling to get back onto my diet and have developed low Vitamin D, Iron, Folic Acid levels because of it.

I have been prescribed 

Ferrous Sulphate - 200mg - One twice a day

HuxD3 - 20,000 IU Colecalciferol - One twice a week

Folic Acid - 5mg - One a day

Am I ok to take them all together? My prescription was sent electronically and now that i am back home i've realised there is no leaflet inside. all the info i have is the dose and how often.

Also, I was prescribed Laxido as i've been having lots of problems with my stomach. I haven't taken any yet as i started working nights and completely through me on when was best to take them. Since then after some tests it looks like i have IBS but wont know for sure till i have my ultrasound on the 23rd May. Should i start taking them or wait to find out the results of my ultrasound? 

Any advice appreciated, Nikki