Is there anything to worry about?
Yes there is. In fact, if you abuse the use of fat burners then there is certainly a lot to be worried about. You would be preparing yourself for side-effects which could be short-term, long-term, reversible or irreversible. Sounds horrifying? It is intended to be so because unless you use these things under proper guidance of an expert or medical practitioner, you are making a good case of what not to do. There have been cases in the past when people go to extremes in their desperation and suffer from side-effects. It is generally not the product that has to be blamed but the greed of the user for overnight success.
Regardless of your Dbol dosage, four to six weeks of use is about all anyone will ever need; some may extend to eight weeks total, but this should be rare and is normally not recommended. The reason for such short-term use once again revolves around this steroid's strong hepatotoxic nature, and if you ignore the recommended time frames you will put your liver at risk. Of course, as seen from the Dbol only cycle link, your total cycle should extend past this point of use or you will risk losing all your gains. A solid plan is an injectable or two with your Dianabol for six weeks, and then continuing the two injectable steroids for another twelve weeks.
As we discussed above, Dianabol carries a strong aromatizing nature, and is a C17-aa anabolic steroid; as such, its side-effects will revolve around these factors. As an aromatizing steroid, this means there can be a testosterone to estrogen conversion, and if estrogen levels go to high it can lead to some complications. When estrogen levels increase, the hormone can attach to the receptors and cause gynecomastia (male-breast enlargement) and it can also promote excess water retention and high blood pressure; Dbol is notorious for promoting high blood pressure. Needless to say, if you already suffer from high blood pressure you should not touch this steroid, but if it's healthy you'll need to ensure it stays this way. For this reason, in-order to combat and avoid these estrogenic side-effects of Dbol, the use of an Aromatase Inhibitor (AI) is often advised. It shouldn't be too hard to see how this can help; after all, an AI inhibits aromatase, but it goes a step further by reducing the body's total estrogen levels. Of course, and this cannot be overstressed, you must keep your doses at a responsible level; most will need at least 20mg per day for any anabolic promotion, with a maximum dosing of 50mg per day. It should be noted; if you've never used this steroid before, you should not start with a high end dose; start low and see how you respond.