Hello! To cut to the chase, I have been with this girl for about a year now, and it's getting weirder and weirder as we go further. When we started dating she was still a virgin, was very curious about sex but just didn't want to do it, I guess I probably tried the hardest and had attributes she liked so we started dating. We both like bondage and roughness, but new realisations about her make me a bit uncomfortable.

First of all, she likes to be mean, feel like I'm being ****-tested all the time (for eg. walking half a meter in front of me at a constant rate and then saying im walking slowly, while we are actually walking faster thany anyone on the street(i noticed in one instance when she has seen a girl sitting alone couple of meters in front of us, as soon as she noticed her, she ran a bit infront of me), relatively often showing no respect and being a bit *****y(also deflecting pretty much everything), when she is guilty of something or senses a fight is about to come, she litteraly shuts her self out/goes to sleep/ignores me or has really ****** arguments that have no sense), she also often laughs a bit uncontrollably on both funny and dumb-as-**** ****, and especially if I raise my voice or confrontation is about to come, I can see she is laughing but tries to be serious, not sure if It's some kind of defence mechanism or what. Latley, shes also been saying that she want's me to wear a (burglar) mask while we have (rough) sex. While usually it wouldn't be a problem for me, I have a feeling this fetish is really a sign of something deeper. She usually has problems maintaining eye-contact with me, especially when we are arguing and says for her self she is a coward. Also rarely looks at me during sex. Also she generally refuses to analyze her actions and says for herself she doesn't like to think and has really low self-esteem.

Little more about her history, basically she recently told me that and they were supposed to recieve "Holy Communion" sacrament so all that sex was deemed as "bad". I am worried what kind of consequence this has on her psychology. She was also fantasizing of being raped even then. She also has neurodermatitis, and It's something that gets worse the more stress she is under and is a bit psychosomatic disease IMHO. Also her explanation for "running away" from conflict all the time is supposedly that she wants to avoid stress at all costs so her neurodermatitis doesn't go haywire. She also had and still has problems with Acid Reflux, had problems with Helico bactery, has recently been given some hormones cause of quite possible Hypothyroidism (supposedly low Thyroid-stimulating hormone(TSH) levels) but somehow she is loosing or staying the same weight which is very uncharacteristic for Hypothyroidism. Supposedly since we are together, or little before that her skin condition got worse and she has lost quite a lot of weight. She often sleeps 10+ hours, and is really lazy to get out of bed, moody, often switches day/night cause she hates morning and loves night, I mean, I'd rather be sleeping all day too and be awake at night but in this day and age, it simply isn't feasible for most people to be productive and have that lifestyle. Sometimes I feel like (and she says for her self that she is childlike and be silly) that she is just mentally stuck in low teenage years.

All these things worry me, I cant make sense of things because I am biased and blind, also paranoid a bit and always first think of the worst case scenario, I'm not sure if mask thing is just a harmless fetish or she really has a problem with intimacy, maybe she just want's to feel sex without it so it's closer to rape? What is she trying to convey or cover up with that childlike behaviour? She says she never envisioned herself as being married in life, and doesn't plan to.(not that I know that I want to, but to me it just says that she doesn't want a long-term commitment in which case there is no point in the relationship for me) There are all these little things that worry me and make me quite insecure about our relationship and I'm starting to question if It's me who is just overly paranoid or what? Her illneses are almost all based on stress (she says for herself she gets stressed out easily, and copes with it by avoiding it). Am I just adding significance to everything and overanalysing?
To be fair, I'm leaving out all the good parts and times we have fun together which is most of the time.
So basically yeah, I would really love that I studied psychology and that I'm unbiased so that all of this starts making sense, however in my mind, it really doesn't. I don't want to burden my friends and expose her and our relationship so that's why I came here, now if you guys could make some sense of this IT WOULD BE AMAZING! And also I appologize for spelling and writing, English is not my 1st langauge and I rarely post on reddit.
tl;dr:My gf has some possible childhood trauma, medical problems possibly cause by stress (unability to cope with it) she is acting unlike any other woman I have been with, being cowardly and I'm unable to analyze her well because I'm biased HELP!!