Here are my thoughts (just a couple of pennies' worth
.)
First, taking cards out of full readings and asking others here to comment on what they think those cards might mean is probably more of an exercise in futility than anything else. All the cards of a spread work off each other to form a full reading. Pulling them away from supporting cards is like reading a sentence out of context.
But to take your question as you posed it, if this were specifically a health reading for a third party, I would have to agree with sapienza. I would never touch a diagnostic-type health reading myself--for anyone--(the phrase
practicing medicine without a license comes to mind very quickly), and the fact that this appears to be reading about someone who has not expressed his "permission" to be read for...well
invasion of privacy comes to mind, also. One's health is pretty personal stuff...
But what it sounds like is that you started doing readings for this friend about her past relationship--probably about what he thinks about her or the relationship now that they are apart or something to that effect. And then, the Four of Swords kept coming up, soon to be followed by the Two and Three. If that is the case, I would likely not have gone to there being a medical facet to it at all, necessarily. It could be that (since Swords are about thought processes and conflict among other things) that he has put thoughts of the relationship on the back burner for now--not that he has forgotten about your friend, but he is in the process of regrouping with hope of starting anew elsewhere. Then when the Two and Three of Swords begin to appear, as well, in subsequent readings, I would think that the Two could indicate that he is trying to regroup by sweeping his true feelings under the rug--but they are really still churning down there. The Three, then, would suggest to me that he really needs to talk this relationship out with someone because he can't truly get over it without expressing whatever residual anger or hurt still exists.
You're regressing from the Four back to the Three and the Two. Just that makes me feel that he has to retrace his steps somehow to be able to come to terms with the end of the relationship.
Now, take into consideration that this reading is actually your friend's reading, and think about whether or not those things really apply to
her and not to him at all. Perhaps, she is the one who needs to get him out of her system and is finding it difficult to do so...
But, again, without the whole spread and positional meanings, if you had assigned them, my comments are just things to think about...not really about the cards and spread you drew for this situation at all. Just musings on an early Monday morning with only a half cup of coffee in me so far.