So you used 100mg a week? This is very low. Maybe you meant 1000mg? but I have to assume you meant 100. So this is lower than a lot of people would get for HRT. If anything, that was enough to shut you down and replace your natural test with sub-optimal levels. For a cycle, I would go no lower than 300mg so that your blood levels actually go higher than normal. Thats what it takes for this hormone to become drug like. But yes, you should still do a PCT. 2 wks after your last shot, start clomid at 100mg for 7 days. Then 50mg for 14-21 days. Then take some time to recover and from there when you go back on, follow what i just suggested to get better results and use an AI while on that cycle to protect yourself.