Complex sentence: Even though her state of mind is ineffable, she continues to dramatize the feeling by continuing to liken it to natural experiences; thus, she claims she is simply drunk on air, merely breathing makes her feel inebriated.
Split into simpler sentences: Even though her state of mind is ineffable, she continues to dramatize the feeling by likening it to natural experiences. Thus, she claims that she is simply drunk on air, and that merely breathing makes her feel inebriated.