side effects of sustanon?

I started with Sustanon 250, an androgenic steroid. I was told that is great for increasing strength and mass. I am doing weight training but I am not satisfied what can I achieve only with training. Anyway I’ve heard some stories from different people how they experienced side effects. So, can you tell me what the possible side effects from Sustanon 250 are?

Sustanon is generally well tolerated, but some unwanted side effects may occur. From what I’ve heard from users of Sustanon these include retention of salt and water, swelling, increased number of blood vessels in the skin, high calcium levels in the blood and change in blood sugar levels. Some of them even reported painful erections and other signs of excessive sexual stimulation and even male breast enlargement!!!