Good Day Doc, I Have Been Ttc For 6yrs Now.

Good day doc, i have been ttc for 6yrs now. my doc prescribed shatavari and Neem which i ve' taking for 3 weeks. but i have being feeling very dizzy and light headache and i was asked to stop taking it, i did but it continued when ever am walking or busy.i don't know what d cause is could u pls help.