luvmyroids need advice bro!

Hi I hope you recollect that I am the same guy with the low test levels problem after my pct.As you recommended, I had followed pheendo's pct.After that for the past 20 days or so I have been using clomid 100mg and tamoxifen 20mg.I cannot afford to continue with the arimidex.Is there any substitute?And will using these medications over a long time cause any side effects like stomach pain,coz I have been experiencing stomach pain off late.
And I also would like to know if I can add any other supplemets like ZMA,tribulus,tongkat ali,avena sativa etc.If yes, then at what dosages?
Thanks BRO!