parasites are the plague and will definitely create massive disruption and fatigue and a whole host of other issues.
parasites come in different forms which require different strategies. Albendazole is a good drug for worms but is ineffective for flukes and Tapeworms and has little effect on protozoa. Do not be deceived by many of the sites who recommend a one size fits all. It is best to get an identification of the parasite and treat appropriately.
If you get tested and need help then pm me, I will walk you thru what you need to do.