I just started PGY1 today in categorical medicine and my first work day was a 28hr ICU shift. I felt completely useless, didn't where anything was, had 0 knowledge of anything, and had to ask my senior residents for help with everything. Every time a nurse paged me, even for really small things, I would just freeze and ask my senior resident what to do. I felt more useless than a 3rd year med student and I'm freaking out. I also basically did nothing my 4th year of medical school. I honored medicine 3rd year and honored my 3 medicine sub-i's but at the beginning of the year (last may, june, july) and pretty much did absolutely nothing the rest of the year. I feel like I don't know any of the basic knowledge or anything at all. Is this normal? When do interns start picking things up?