Hi Maksim!
I don´t have BPD but I have had symptoms of BPD as well as intense anxiety.
Anyhow, here´s the deal.
If you use gel, you use it daily. This means that your T levels will stay more "even". When you use injections, you will have slight variations in your level - I have been told that it tends to wind down until you get your next shot. I am not on shots atm so this is not first hand experience. But pretty much everybody I know, has reported something like this.
T usually helps a lot with anxiety and it can help stabilize moodswings. However moodswings in FTM can also be tied up to your hormonal cycle. In my case (and possibly others) this means that you can still have more moodswings around the time of shark week, even if shark week stops.
T has helped even out my moods tremendously. I still have some ups and downs though, however these are also related to other factors, such as the amount of outdoor time, sunshine I get, how healthy I eat, etc. IMO, starting with gel is the best option if you want to see how your emotions respond: then later on, if you feel okay with it, you could always consider changing to injections.
About the sensory issues: I don´t know what that´s like, but the gel (androgel, testogel, which are the same) is really easy to put on, it doesn´t stick, it isn´t thick (more watery than thick). It does have some alcohol in it and you can certainly smell it, and it does tend to dry out the skin a bit if you apply it in the same place over and over (I have dry skin and this has happened). Personally I try switching the location from my upper legs, to my belly and my arms for a while, and then after another whole I switch back again.
If you have any other questions about the gel ask away 🙂
