Personally, I think people say "detox" when it may or may not be the situation. The bottom line is, we ultimately don't always know. There are plenty of times where it's mostly a result of the individual doing a very harsh and rash desicion on foods, and the body is not prepared or equipped or accustomed to the extremes that this person is attempting to do- leaving this person having to do damage control. Yes some toxins, old illnesses etc may be pushed into the system, but then if the system is unprepared, or the person does this for months exceeding what the system can support on this harsh diet, it crashes. The digestive tract weakens and so does the qi. This can look like loose stool or constipation, fatigue, heaviness, headaches- a slew of things. People can be too extreme for their own good. There are some situations where a harsh detox is warrented (cancer/aids) but ultimately the average Joe is taking it too far and too quickly.
That said, no one can accurately tell you if you are detoxing or have been. You most likely did shuffle some vaccines, chemicals, old viruses etc. but you probably also weakened your system a bit too. Cases like this I don't really care to define what is what. You have to look at your symptoms and treat where you are now and support bringing back harmony.
The reason why our intakes are over an hour is because this is not simple medicine. A treatment is and should be tailored to you therefore giving you advice over the internet is next to impossible if not potentially misleading. So the following could be by no means accurate.
Given what you have mentioned I am not convinced you are suffering from D/H. D/H implies excess in many situations. I actually would suspent you are defficent, not excess.
Si Jun Zi Tang, or something like that- along with probiotics, maybe some aloe and so on is probably where I might start, but again- I have no idea what the details of your story are, what you look like, your tongue, flesh, hair, pulses etc. I agree with the above in that I am not sure the formula you are on is one I would prescribe for this situation.