I cannot comment on the strain of Bipolar I, but I can say that I have found that Bipolar II (I experience more depression than anything) can be similarly difficult. I am constantly questioning myself. Is this a hour/day/week or am I slipping again? I have said in the past that sometimes I would rather remain in a low then experience a short relief only for the low to come again. It is easier that way. It is terrible but the depression becomes familiar.
I am not in therapy right now and this is the longest I have been without in ~3yrs. That makes me nervous as well bc I am always thinking about it and if I will be able to do this alone. I have very few friends and no one to talk to. Holding the stress in probably only increases the strain. I have very severe fatigue (to the extent that I take stimulants for it) and I don't know the source. Maybe it is just this illness draining me. Has anyone else experienced such exhaustion that it is difficult to stay awake/do alot during the day?